ReleaseNotes.rst: typo

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@182294 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 886f7f9..ba87cea 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -124,7 +124,7 @@
 For each variable and function Clang used to keep the storage class as written
 in the source, the linkage and a semantic storage class. This was a bit
 redundant and the semantic storage class has been removed. The method
-getStorageClass now returns what is written it the source code for that decl.
+getStorageClass now returns what is written in the source code for that decl.
 
 Wide Character Types
 ^^^^^^^^^^^^^^^^^^^^