Fix file extension on last blog post
Update readme
Cleanup metadata
Finally finish the about page
Common links on about page

Add json file with common shared links, and load them up as metadata.

Change up the About content page, to work around metalsmith-templates' inPlace bug with binary files and treat it as extension on the template (my custom metalsmith-templates plugin).
Add "/" to links, to they work globally
Keep about page sidebar links gray
Fix fa icon next to source links
Change contact wording