minor updates for gitattributes
minor updates for gitattributes

redautumn/redautumn.github.com,mingliangguo/mingliangguo.github.com,redautumn/redautumn.github.com,mingliangguo/mingliangguo.github.com,redautumn/redautumn.github.com,mingliangguo/mingliangguo.github.com