Add loadCSS in Tools
Better perceived performance with webfonts, eliminate the FOIT
Adding author.
Update content. Closes #19.
Add Zach Leatherman avatar.
Merge branch 'patch-1' of git://github.com/zachleat/perf.rocks into zachleat-patch-1

* 'patch-1' of git://github.com/zachleat/perf.rocks:
  Adding author.
  Better perceived performance with webfonts, eliminate the FOIT

Conflicts:
	data/articles.yml
	data/people.yml
Merge branch 'zachleat-patch-1'

* zachleat-patch-1:
  Adding author.
  Better perceived performance with webfonts, eliminate the FOIT
Merge pull request #17 from nucliweb/master

Add Critical in Tools
Merge branch 'master' of https://github.com/danielguillan/perf.rocks