supervisord and streams writeup
added the code-block structure
Edits to README to bring it in line with m5 use of supervisor; revisions to supervisor doc (but not complete yet)
Removed section on starting supervisord - verified on a fresh instance that it automatically starts after installation
Completed initial rewrite to reflect how SFM manages supervisor in m4_002 and beyond
Merge branch 't182-supervisor-stream-doc'