Fix a typo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96597 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/AdvancedGetElementPtr.html b/docs/AdvancedGetElementPtr.html
index b5efe73..65ccbc4 100644
--- a/docs/AdvancedGetElementPtr.html
+++ b/docs/AdvancedGetElementPtr.html
@@ -45,7 +45,7 @@
 
   <p>Also, GEP carries additional pointer aliasing rules. It's invalid to take a
      GEP from one object, address into a different separately allocated
-     object, and deference it. IR producers (front-ends) must follow this rule,
+     object, and dereference it. IR producers (front-ends) must follow this rule,
      and consumers (optimizers, specifically alias analysis) benefit from being
      able to rely on it.</p>