Update instructions for submitting a patch.

README

@@ -111,15 +111,10 @@ A: All configuration was moved either into apache conf files or into the
    settings section of mythweb itself.
 
 Q: I've fixed a bug (or added a feature), how do I submit my patch?
-A: First, create your patch against mythweb git with "git diff head", having made
-    sure that your code is indented with 4 spaces and not tabs.  Next, post the
-    patch on the MythTV Trac Server ( https://code.mythtv.org/trac/ ) as
-    described on the Trac server's home page.  Please include a detailed
-    description of your patch on the ticket.  Select the ticket Type "patch" and
-    component "mythweb".  If you don't hear back from me or see the patch
-    committed right away, don't worry.  As long as you follow these
-    instructions, I will at least get back to you one way or another --
-    eventually.
+A: Please consider forking the project on
+    ![Github](https://github.com/MythTV/mythweb) and create a pull
+    request. Make sure that your code is indented with 4 spaces and
+    not tabs.
 
 Q: I'm trying to stream audio/video, but it's not working.
 A: First, make sure that if you have enabled some form of authentication that