Merge pull request #5 from CodeForPortland/mele

and more projects
Merge pull request #6 from CodeForPortland/mele

instructions are good
adding example project markdown link
Update data_catalog.md
and update the link
Update project_dir.md
shorten that description
shorten more stuff
;
Update data_catalog.md
Merge pull request #7 from znmeb/patch-1

Update data_catalog.md
fun with merge conflicts
Merge branch 'master' of https://github.com/CodeForPortland/project-index
cleaning up data links etc