fix minor mis-spelling
Merge pull request #1399 from aleiphoenix/master

fix minor mis-spelling
Fix a typo in Readme.markdown
Merge pull request #1405 from AlexVPopov/patch-1

Fix a typo in Readme.markdown
Merge branch 'master' of git://github.com/imathis/octopress into source

Aggiornamento di octopress
dopo aggiornamento di octopress