Revise hw05

[bensoltoff]

Some students seem confused as to what needs to be generated for part 2. Update instructions to be clear:

1. An R Markdown document knitted to a slide format which contains output and presentation content only
2. An R Markdown document knitted to github_document which contains code, output, and talking points

[bensoltoff]

• Drop part 2 - no need for slide presentations and the quality was not good
• Generate multiple exercises on debugging
• Need some sort of exercise implementing R Markdown in a more complex format. What to do?

[bensoltoff]

Draw exercises from rstats-wtf

[bensoltoff]

Finished in e73ad1a7fd32c3adc0e9267a8b191e3f3031b67a.