Added modal window section + link
Adds Pattern Submissions and Adjusts Article Submissions
Add test using keyboard only to checklist

This is one will help pick up issues with :focus styles and keyboard traps. I'm an almost all keyboard uses, just because of repetitive strain issues, something many developers face. Let me know if you think my rewording needs tweeking.
Merge pull request #1 from a11yproject/gh-pages

Update
Merge branch 'gh-pages' into patch-7

Conflicts:
	patterns/index.html
Merge pull request #254 from svinkle/patch-7

Added modal window section + link
fix typo
Merge pull request #265 from equivalentideas/patch-1

Add 'test using keyboard only' to checklist
Added Anchors/Links category + "Read More" pen
Merge pull request #268 from svinkle/patch-10

Added Anchors/Links category + "Read More" pen
Read More Link Pattern using aria-labeledby. Closes Issue #269
New article for introduction to ARIA - first stab at #262
removing state and property demo's, not sure they were actually helpful
update post Gist review