Minor cleanup to deliverables text and README.
Convert grading guidelines to Markdown.
Move exam study guides to their own directory and convert to Markdown.
More succinct name for lecture-links.md.
Convert syllabus and course info to Markdown.
There is no "standard" grading scale at the University of Pittsburgh.
Removes corrupt PDF.
Merge pull request #10 from timparenti/L22-fixes

L22 fixes