Update README.md
adding advanced tutorial.
minor changes.
finished section on control styles. Added section for general guidelines. Added subsection on minimizing time spent in WHEN/THEN block.
completed intermediate kOS tutorial (not proofed yet)
fixed link to getting started tutorial, changed name to Intermediate Tutorial from Control Styles etc.
added links to the intermediate tutorial from the front page and from the getting started tutorial.
minor corrections to the code examples.
major cleanup of the code and text.
added picture of an example rocket for use in testing the code in the intermediate tutorial.
reqorking of the last section to remove 1st person.
added some links here and there.
Merge branch 'master' of github.com:theodoregoetz/KOS_DOC

Conflicts:
	README.md
Added theodoregoetz's design patterns tutorial page.