ClangFormat.rst: Fix two small typos

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176276 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ClangFormat.rst b/docs/ClangFormat.rst
index 3272458..9475358 100644
--- a/docs/ClangFormat.rst
+++ b/docs/ClangFormat.rst
@@ -44,10 +44,10 @@
 
 There is an integration for :program:`vim` which lets you run the
 :program:`clang-format` standalone tool on your current buffer, optionally
-selecting regions to reformat. The integration has to form of a `python`-file
+selecting regions to reformat. The integration has the form of a `python`-file
 which can be found under `clang/tools/extra/clang-format/clang-format.py`.
 
-This can be integrated by mapping the following to your `.vimrc`:
+This can be integrated by adding the following to your `.vimrc`:
 
 .. code-block:: console