Update Jenkins Connection Documentation

Update Jenkins Connection Documentation

Majority of this change is fixing the syntax to use '..code::' blocks,
wrapping text >80 characters, and fixing indentation which cause things
to show up as quote blocks.

The other main change was updating the link to support when requesting
the server be connected - helpdesk@ has been replaced by
support.linuxfoundation.org

Change-Id: Iee4d1152edc519b7299ffe3f8e9c11b6209559b2
Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>