Fixed typo

Author: Andrew Pardoe

CppCoreGuidelines.md

@@ -8,7 +8,7 @@ Editors:
 * [Bjarne Stroustrup](http://www.stroustrup.com)
 * [Herb Sutter](http://herbsutter.com/)
 
-This document is a very early draft. It is inkorrekt, incompleat, and pµøoorly formatted
+This document is a very early draft. It is inkorrekt, incompleat, and pµøoorly formatted.
 Had it been an open source (code) project, this would have been release 0.1.
 Copying, use, modification, and creation of derivative works from this project is licensed under an MIT-style license. 
 Contributing to this project requires agreeing to a Contributor License. See the accompanying LICENSE file for details.