New issue: 6.1.1 can on a quick reading be misread that it's a complete list of status codes

The second sentence in the first paragraph can on a quick reading be
misread as section 10 contains a complete definiton of all possible
status codes, where it in reality only has the status codes defined by
this RFC.

Change

These codes are fully defined in section 10.

Into

The status codes defined by this RFC is fully defined in section 10.

hinting that it's a good idea to read further..

Regards
Henrik