changes to README.md before week 2.

[michaelpalumbo]

Hey gang, you can ignore this one. it's a note to self for what to update in the readme.md before start of week 2.

13. Copy the entire contents of reflections.md into the blank score.md

This is incorrect. I didn't mean to imply that the score should be made up of the entire reflections doc. Instead, they should use elements from their reflections to consider changes to the score.md. Of course the can copy it verbatim from reflections, but unfortunately this line here implies it as the default.