Fix typo

[jakevossen5]

Summary

Saw a typo while checking out the docs, if you want me to split these up let me know and I can do it. You can see the SmallVector issue here: https://llvm.org/doxygen/SmallVector_8h.html

[kiranchandramohan]

LGTM. Thanks for this contribution. Let me know if you want help to submit this patch to the github repo.

Note1: I don't usually review in this area, but this seems like a trivial patch to accept. Just responding to your post in twitter (https://twitter.com/jakevossen5/status/1509007485188812802?s=20&t=khx4DRCOepQ_wBpY2SDoIw). Have added @dexonsmith who seemed to be active in this part of the code, please wait a day before you merge.
Note2: Usually the recommendation is to upload the full context for patches. But I guess in this case it does not matter.
https://llvm.org/docs/Phabricator.html#requesting-a-review-via-the-web-interface

[jakevossen5]

RE: GitHub - pretty sure I don't have permissions to submit it to GitHub - last change I made was pushed by someone else (https://reviews.llvm.org/D103905), so I would appreciate the help!

RE: Note 2: my bad - will make sure I do that in the future!

[kiranchandramohan]

The fix in README was already in, so merging the SmallVector doc change only. Thanks.

llvm/include/llvm/ADT/SmallVector.h

 //===- llvm/ADT/SmallVector.h - 'Normally small' vectors --------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 ///
-/// /file
+/// \file
 /// This file defines the SmallVector class.
 ///
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_ADT_SMALLVECTOR_H
 #define LLVM_ADT_SMALLVECTOR_H
 
 #include "llvm/Support/Compiler.h"