[clang-tools-extra] [Docs][clang-tools-extra] Convert maintainers list to .rst format (PR #165171)

[Baranov Victor via cfe-commits]

================
@@ -2,9 +2,13 @@
 Clang Tools Extra Maintainers
 =============================
 
-This file is a list of the maintainers
-(https://llvm.org/docs/DeveloperPolicy.html#maintainers) for clang-tools-extra.
+This file is a list of the 
+`maintainers <https://llvm.org/docs/DeveloperPolicy.html#maintainers>`_
+for clang-tools-extra.
----------------
vbvictor wrote:

Used `project` as in
"Welcome to the clang-tools-extra project which contains extra tools built using Clang’s tooling APIs."
https://clang.llvm.org/extra/index.html.

WDYT?

https://github.com/llvm/llvm-project/pull/165171