Finish 10.1.4, Micropost refinements, all green.  Next --10.1.5
Finish 10.1.5, Content validations, all green.  Next --10.2
Finish 10.2, Showing microposts. --Next 10.2.2
Finish 10.2.2, Sample microposts, all green. --Next 10.3
Finish 10.3.1, Access control, all green. Next --10.3.2
Finish 10.3.2, Creating microposts. Next --10.3.3
Finish 10.3.3, A proto feed, all green. Next --10.3.4
Finish 10.3.4, Destroy microposts. Next -- Chapter 11