add draft homework rubric; need something to point to in issues opening peer review
Merge branch 'master' of https://github.com/STAT545-UBC/STAT545-UBC.github.io

# By Julia Gustavsen
# Via Julia Gustavsen
* 'master' of https://github.com/STAT545-UBC/STAT545-UBC.github.io:
  added peer review rubric and peer evaluation guidelines
delete my peer review placeholders; joolia  added at the same time!
follow the filenaming convention
rename, tweak, compile peer-review02