use escapes.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68600 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/PTHInternals.html b/docs/PTHInternals.html
index 9e8cb59..955699d 100644
--- a/docs/PTHInternals.html
+++ b/docs/PTHInternals.html
@@ -100,7 +100,7 @@
 
 <pre>
   $ cat test.h
-  #include<stdio.h>
+  #include &lt;stdio.h&gt;
   $ clang-cc -emit-pth test.h -o test.h.pth
   $ cat test.c
   #include "test.h"