No need to use <strong> on a heading.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1546661 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=55383
Include "Open Sans" font and use it for the documentation.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1546663 13f79535-47bb-0310-9956-ffa450edef68
Fix tab.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1546664 13f79535-47bb-0310-9956-ffa450edef68