Adding article about Documentation
Punt on attempting to escape HTML-style comment /cc @Palleas
Typo
Grammar'd /cc @numist
Adding randomness article
Merge pull request #18 from jawwad/fix-nscharacterset-typo

Fix minor word omission in NSCharacterSet article
Minor copy editing
Merge branch 'master' of https://github.com/NSHipster/articles
Update 2013-08-12-random.md

grammar / clarity
Correcting off-by-one error for arc4random_uniform /thanks @tempelmann
Merge pull request #22 from samhatchett/patch-1

Update 2013-08-12-random.md
Fix pluralization