Fix warning and resulting formatting issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182939 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/LangRef.rst b/docs/LangRef.rst
index e07d8fe..fe4b957 100644
--- a/docs/LangRef.rst
+++ b/docs/LangRef.rst
@@ -2911,7 +2911,7 @@
 -----------------------------------
 
 The ``@llvm.used`` global is an array which has
- :ref:`appending linkage <linkage_appending>`. This array contains a list of
+:ref:`appending linkage <linkage_appending>`. This array contains a list of
 pointers to global variables, functions and aliases which may optionally have a
 pointer cast formed of bitcast or getelementptr. For example, a legal
 use of it is: