[llvm] Fix GetElementPtr article link (PR #151868)

[via llvm-commits]

https://github.com/kirindenle created https://github.com/llvm/llvm-project/pull/151868

I got 404 when reading FAQ on github, after clicking GetElementPtr.html, it probably should be .rst
Probably some more .html links should be updated.
I'm not sure if this is correct change, I tested that link now works on github.

>From 7323e8018f38e15394d1700c2a8553956d426932 Mon Sep 17 00:00:00 2001
From: kirindenle <43319675+kirindenle at users.noreply.github.com>
Date: Sun, 3 Aug 2025 21:12:08 +0700
Subject: [PATCH] Fix GetElementPtr article link

GetElementPtr doesn't exist, it should be .rst
---
 llvm/docs/FAQ.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/docs/FAQ.rst b/llvm/docs/FAQ.rst
index aa20de47a6998..cd2accb56ba2b 100644
--- a/llvm/docs/FAQ.rst
+++ b/llvm/docs/FAQ.rst
@@ -138,7 +138,7 @@ facilities for lexical nor semantic analysis.
 
 I don't understand the ``GetElementPtr`` instruction. Help!
 -----------------------------------------------------------
-See `The Often Misunderstood GEP Instruction <GetElementPtr.html>`_.
+See `The Often Misunderstood GEP Instruction <GetElementPtr.rst>`_.
 
 
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