Merge pull request #1 from lonsbio/gh-pages

Add cloud instance notes, fix typo
Update html with fixes.
Added plots.
Random group assignment.
Typo fix.
Typo fix.
Typo fix in geneinfo.
Degust links.
Testing assignment data.
Clustering workshop.
Minor changes to clustering lab.
Added P-values notebook.
Add direct link to source P-values notebook.
Skeleton week 10