Update lifecycles.markdown

Just a few additional examples to clarify what wasn't obvious when I first began using lifecycles, and minor text corrections.
Update lifecycles.markdown

Add a note and example on params on repeated transitions.
Merge pull request #8 from enwood/patch-4

Update lifecycles.markdown
Merge pull request #9 from enwood/patch-5

Update lifecycles.markdown
Merge remote-tracking branch 'hobodoc/master'