minor doc add in odo.odo
minor doc add in odo.odo

It looks like the description of valid options for `source` had lopped off a line. Just added a reasonable conclusion, and a close parenthesis in the `target` description.
cpcloud/odo,ContinuumIO/odo,cpcloud/odo,ContinuumIO/odo,cowlicks/odo,blaze/odo,quantopian/odo,blaze/odo,quantopian/odo,cowlicks/odo