Move location of header information

Currently, it appears after the notes, authentication and capture
information... such that if any of those exist, then the list of
header sensitivity will appear to be an item of one of the previous
ones (as they provide Markdown headers).

servant-docs/src/Servant/Docs/Internal.hs

@@ -525,10 +525,10 @@ markdown api = unlines $
         printEndpoint endpoint action =
           str :
           "" :
+          headersStr (action ^. headers) ++
           notesStr (action ^. notes) ++
           authStr (action ^. authInfo) ++
           capturesStr (action ^. captures) ++
-          headersStr (action ^. headers) ++
           paramsStr (action ^. params) ++
           rqbodyStr (action ^. rqtypes) (action ^. rqbody) ++
           responseStr (action ^. response) ++