Align documentation in Format.h and ClangFormatStyleOptions.rst for EmptyLineAfterAccessModifier

[Max_S]

I added the setting in the title.

Could you please land this for me. Thank.

[MyDeveloperDay]

LGTM thank you!

clang/include/clang/Format/Format.h

enum EmptyLineAfterAccessModifierStyle : unsigned char {
     ///
     ///   protected:
     ///
     ///   };
     /// \endcode
     ELAAMS_Always,
   };
 
-  /// Defines in which cases to put empty line after access modifiers.
+  /// Defines when to put an empty line after access modifiers.
+  /// ``EmptyLineBeforeAccessModifier`` configuration handles the number of
+  /// empty lines between two access modifiers.
   EmptyLineAfterAccessModifierStyle EmptyLineAfterAccessModifier;
 
   /// Different styles for empty line before access modifiers.
   enum EmptyLineBeforeAccessModifierStyle : unsigned char {
     /// Remove all empty lines before access modifiers.
     /// \code
     ///   struct foo {
     ///   private: