[Docs] Add CIBestPractices docs link to Reference.rst (llvm#165108)

vbvictor · Lukacma · commit de42c9b70b88 · 2025-10-29T11:17:01.000Z
Based on llvm#165067 (comment).
diff --git a/llvm/docs/Reference.rst b/llvm/docs/Reference.rst
@@ -250,3 +250,7 @@ Additional Topics
 
 :doc:`ContentAddressableStorage`
    A reference guide for using LLVM's CAS library.
+
+:doc:`CIBestPractices`
+   A list of guidelines and best practices to use when working on LLVM's
+   CI systems.
