Fix broken link to HTTP connector in the Proxy HowTo, as reported on the users list.
Fix broken link to HTTP connector in the Proxy HowTo, as reported on the users list.

git-svn-id: 79cef5a5a257cc9dbe40a45ac190115b4780e2d0@1526469 13f79535-47bb-0310-9956-ffa450edef68

Nickname0806/Test_Q4,apache/tomcat,apache/tomcat,apache/tomcat,apache/tomcat,Nickname0806/Test_Q4,Nickname0806/Test_Q4,apache/tomcat,Nickname0806/Test_Q4