[docs] Add Loop Opt WG meeting ics.

[Meinersbur]

Summary

Add ics file for biweekly loop optimization meeting.

[bmahjour]

Thanks for this @Meinersbur . Could we replace "https://ibm.webex.com/ibm/j.php?MTID=mad5dd5ca19e0423759b0c507245e4ccc" everywhere it occurs with "https://ibm.webex.com/ibm/j.php?MTID=m450e0c4009445e16df43ff82ea58f7a6", so that the meeting link is consistent with the info in the google doc.

[Meinersbur]

Replace meeting link

[bmahjour]

LGTM. Thanks.

llvm/docs/GettingInvolved.rst

.. list-table:: LLVM regular sync-up calls
    :header-rows: 1
 
    * - Topic
      - Frequency
      - Calendar link
      - Minutes/docs link
    * - Loop Optimization Working Group
      - Every 2 weeks on Wednesday
-     - 
+     - `ics <./_static/LoopOptWG_invite.ics>`__
      - `Minutes/docs <https://docs.google.com/document/d/1sdzoyB11s0ccTZ3fobqctDpgJmRoFcz0sviKxqczs4g/edit>`__
    * - RISC-V
      - Every 2 weeks on Thursday
      - `ics <https://calendar.google.com/calendar/ical/lowrisc.org_0n5pkesfjcnp0bh5hps1p0bd80%40group.calendar.google.com/public/basic.ics>`__
        `gcal <https://calendar.google.com/calendar/b/1?cid=bG93cmlzYy5vcmdfMG41cGtlc2ZqY25wMGJoNWhwczFwMGJkODBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ>`__
      -
    * - Scalable Vectors and Arm SVE
      - Monthly, every 3rd Tuesday

llvm/docs/_static/LoopOptWG_invite.ics

+BEGIN:VCALENDAR
+PRODID:-//Microsoft Corporation//Outlook 10.0 MIMEDIR//EN
+VERSION:2.0
+METHOD:PUBLISH
+BEGIN:VTIMEZONE
+TZID:America/New_York
+LAST-MODIFIED:20201011T015911Z
+TZURL:http://tzurl.org/zoneinfo-outlook/America/New_York
+X-LIC-LOCATION:America/New_York
+BEGIN:DAYLIGHT
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:19700308T020000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+DTSTART:19701101T020000
+RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20210908T145817Z
+ORGANIZER;CN="Bardia Mahjour":MAILTO:[e-mail]
+DTSTART;TZID=America/New_York:20210908T110000
+DTEND;TZID=America/New_York:20210908T120000
+LOCATION:https://ibm.webex.com/ibm/j.php?MTID=m450e0c4009445e16df43ff82ea58f7a6
+TRANSP:OPAQUE
+SEQUENCE:1631113097
+UID:862486b7-998c-41f8-b7ca-0906ac06f113
+DESCRIPTION:\n\n\n\n\nJOIN WEBEX MEETING\nhttps://ibm.webex.com/ibm/j.php?MTID=m450e0c4009445e16df43ff82ea58f7a6\nMeeting number (access code): 145 067 2790\n\nMeeting password: PQduM8RxN52 (77386879 from phones and video systems)\n\n\n\nTAP TO JOIN FROM A MOBILE DEVICE (ATTENDEES ONLY)\n1-844-531-0958,,1450672790#77386879# tel:[phone],,*01*1450672790%2377386879%23*01* United States Toll Free\n+1-669-234-1178,,1450672790#77386879# tel:%2B1-669-234-1178,,*01*1450672790%2377386879%23*01* United States Toll\nSome mobile devices may ask attendees to enter a numeric password.\n\n\nJOIN BY PHONE\n1-844-531-0958 United States Toll Free\n1-669-234-1178 United States Toll\n\nGlobal call-in numbers\nhttps://ibm.webex.com/ibm/globalcallin.php?MTID=mb6e6082af7e7e7fe3948dbe9ab0025cf\n\nToll-free calling restrictions\nhttps://ibm.webex.com/ibm/customer_tollfree_restrictions.pdf\n\n\nJOIN FROM A VIDEO SYSTEM OR APPLICATION\nDial sip:[e-mail]\nYou can also dial 173.243.2.68 and enter your meeting number.\n\n\nJoin using Microsoft Lync or Microsoft Skype for Business\nDial sip:[e-mail]\n\n\n\n\n\nCan't join the meeting?\nhttps://collaborationhelp.cisco.com/article/WBX000029055\n\n\nIMPORTANT NOTICE: Please note that this Webex service allows audio and other information sent during the session to be recorded, which may be discoverable in a legal matter. By joining this session, you automatically consent to such recordings. If you do not consent to being recorded, discuss your concerns with the host or do not join the session.\n
+X-ALT-DESC;FMTTYPE=text/html:<style type="text/css">\ntable {\n  border-collapse: separate; width =100%;  border: 0;  border-spacing: 0;}\n\ntr {\n  line-height: 18px;}\n\na, td {\n  font-size: 14px;  font-family: Arial;  color: #333;  word-wrap: break-word;  word-break: normal;  padding: 0;}\n\n.title {\n  font-size: 28px;}\n\n.image {\n  width: auto;  max-width: auto;}\n\n.footer {\n  width: 604px;}\n\n.main {\n\n}@media screen and (max-device-width: 800px) {\n  .title {\n    font-size: 22px !important;  }\n  .image {\n    width: auto !important;    max-width: 100% !important;  }\n  .footer {\n    width: 100% !important;    max-width: 604px !important\n  }\n  .main {\n    width: 100% !important;    max-width: 604px !important\n  }\n}\n</style>\n\n<table bgcolor="#FFFFFF" style="padding: 0; margin: 0; border: 0; width: 100%;" align="left">\n  <tr style="height: 28px"><td>&nbsp;</td></tr>\n  <tr>\n    <td align="left" style="padding: 0 20px; margin: 0">\n      <!--<table bgcolor="#FFFFFF" style="border: 0px; width: 100%; padding-left: 50px; padding-right: 50px;" align="left" class="main">\n        <tr>\n          <td align="center" valign="top" >&nbsp;          </td>\n        </tr>\n      </table>-->\n\n\n\n\n\n      <table>\n        <tr>\n          <td>\n            <FONT SIZE="4" COLOR="#666666" FACE="arial">When it's time, join the Webex meeting here.</FONT>\n          </td>\n        </tr>\n    </table>\n        <table>\n          <tr style="line-height: 20px;"><td style="height:20px">&nbsp;</td></tr>\n      <tr>\n        <td style="width:auto!important; ">\n          <table border="0" cellpadding="0" cellspacing="0" style="width:auto;width:auto!important;background-color:#00823B; border:0px solid #00823B; border-radius:25px; min-width:160px!important;">\n            <tr>\n              <td align="center" style="padding:10px 36px;"><a href="https://ibm.webex.com/ibm/j.php?MTID=m450e0c4009445e16df43ff82ea58f7a6" style="color:#FFFFFF; font-size:20px; text-decoration:none;">Join meeting</a></td>\n            </tr>\n          </table>\n        </td>\n      </tr>\n    </table>\n    <table>\n      <tr style="line-height: 20px;"><td style="height:20px">&nbsp;</td></tr>\n      <tr>\n        <td>\n            <FONT SIZE="3" COLOR="#666666" FACE="arial">More ways to join:</FONT>\n        </td>\n          </tr>\n            <tr style="line-height: 10px;"><td style="height: 10px;">&nbsp;</td></tr>\n          <tr>\n        <td>\n            <FONT SIZE="3" COLOR="#666666" FACE="arial">Join from the meeting link</FONT>\n        </td>\n          </tr>\n          <tr>\n        <td>\n            <FONT SIZE="2" COLOR="#666666" FACE="arial"><a href='https://ibm.webex.com/ibm/j.php?MTID=m450e0c4009445e16df43ff82ea58f7a6' style='color:#005E7D;  text-decoration:none; font-family: Arial;font-size: 14px;line-height: 24px;'>https://ibm.webex.com/ibm/j.php?MTID=m450e0c4009445e16df43ff82ea58f7a6</a></FONT>\n        </td>\n          </tr>\n          <tr style="line-height: 20px;"><td style="height:20px">&nbsp;</td></tr>\n      <tr>\n        <td>\n            <FONT SIZE="3" COLOR="#666666" FACE="arial">Join by meeting number</FONT>\n        </td>\n          </tr>\n      <tr>\n        <td>\n          <FONT SIZE="2" COLOR="#666666" FACE="arial">Meeting number (access code): 145 067 2790</FONT>\n        </td>\n      </tr>\n    </table>\n    <table><tr><td><FONT SIZE="2" COLOR="#666666" FACE="arial">Meeting password:</FONT></td><td><FONT SIZE="2"  COLOR="#666666" FACE="arial">PQduM8RxN52 (77386879 from phones and video systems)</FONT></td></tr></table>\n\n <FONT size="2" COLOR="#FF0000" style="font-family: Arial;"></FONT>\n\n&nbsp; <BR><FONT SIZE="4" FACE="ARIAL"><FONT SIZE="3" COLOR="#666666" FACE="arial">Tap to join from a mobile device (attendees only)</FONT> &nbsp; <BR><FONT SIZE="2" COLOR="#666666" FACE="arial"><a href='tel:[phone],,*01*1450672790%2377386879%23*01*' style='color:#005E7D;  text-decoration:none; font-family: Arial;font-size: 14px;line-height: 24px;'>1-844-531-0958,,1450672790#77386879#</a> United States Toll Free</FONT> &nbsp; <BR><FONT SIZE="2" COLOR="#666666" FACE="arial"><a href='tel:%2B1-669-234-1178,,*01*1450672790%2377386879%23*01*' style='color:#005E7D;  text-decoration:none; font-family: Arial;font-size: 14px;line-height: 24px;'>[phone],,1450672790#77386879#</a> United States Toll</FONT> &nbsp; <BR><FONT SIZE="2" COLOR="#666666" FACE="arial">Some mobile devices may ask attendees to enter a numeric password.</FONT>&nbsp; <BR><BR><FONT SIZE="4" FACE="ARIAL"><FONT SIZE="3" COLOR="#666666" FACE="arial">Join by phone</FONT> &nbsp; <BR><FONT SIZE="2" COLOR="#666666" FACE="arial">1-844-531-0958 United States Toll Free</FONT> &nbsp; <BR><FONT SIZE="2" COLOR="#666666" FACE="arial">1-669-234-1178 United States Toll</FONT> &nbsp; <BR><FONT SIZE="2" COLOR="#666666" FACE="arial"><a href="https://ibm.webex.com/ibm/globalcallin.php?MTID=mb6e6082af7e7e7fe3948dbe9ab0025cf" style="text-decoration:none;font-size:14px;color:#005E7D">Global call-in numbers</a>&nbsp;&nbsp;|&nbsp;&nbsp;<a href="https://ibm.webex.com/ibm/customer_tollfree_restrictions.pdf" style="text-decoration:none;font-size:14px;color:#005E7D">Toll-free calling restrictions</a></FONT>&nbsp; <BR><BR><BR>\n\n<table><tr style="line-height: 20px;"><td style="height:20px">&nbsp;</td></tr></table>\n\n<FONT SIZE="4" FACE="ARIAL"><FONT SIZE="3" COLOR="#666666" FACE="arial">Join from a video system or application</FONT><BR><FONT SIZE="2" COLOR="#666666" FACE="arial">Dial</FONT> <a href="sip:[e-mail]"><FONT SIZE="2" COLOR="#005E7D" FACE="arial">[e-mail]</FONT></a>&nbsp; <BR><FONT SIZE="2" COLOR="#666666" FACE="arial">You can also dial 173.243.2.68 and enter your meeting number.</FONT> &nbsp; <BR></FONT>&nbsp; <BR>\n\n<table><tr style="line-height: 20px;"><td style="height:20px">&nbsp;</td></tr></table><table cellpadding="0" cellspacing="0"><tr><td  style="color: #000000; font-family: Arial;font-size: 12px; font-weight: bold; line-height: 24px;"><b>Join using Microsoft Lync or Microsoft Skype for Business</b></td></tr><tr style="margin:0px"><td style="color: #333333; font-family: Arial; font-size: 14px; line-height: 24px;">Dial <a href=" sip:[e-mail]"   style="text-decoration:none;color:#005E7D">[e-mail]</a></td></tr></table>\n\n  <table><tr style="line-height: 20px"><td style="height:20px">&nbsp;</td></tr></table>\n  \n\n      <table style="width: 100%;" align="left" class="main">\n                <tr style="height: 20px"><td>&nbsp;</td></tr>\n        <tr>\n          <td style="height: 24px; color: #000000; font-family:Arial; font-size: 14px; line-height: 24px;">Need help? Go to <a href="https://help.webex.com" style="color:#005E7D; text-decoration:none;">https://help.webex.com</a>\n          </td>\n        </tr>\n                <tr style="height: 44px"><td>&nbsp;</td></tr>\n      </table>\n    </td>\n  </tr>\n</table>\n
+SUMMARY:Loop Opt WG
+PRIORITY:5
+CLASS:PUBLIC
+RRULE:FREQ=WEEKLY;WKST=SU;INTERVAL=2;BYDAY=WE
+BEGIN:VALARM
+TRIGGER:-PT5M
+ACTION:DISPLAY
+DESCRIPTION:Reminder
+END:VALARM
+END:VEVENT
+END:VCALENDAR