they => these

Resources are things/stuff so it should be better to use these instead of they, I'm not a native speacker so I could obiviously be wrong
Fix typo - add do to context block.
Fixed the wrong class reference "Don't use should"
Update content/index.html
CSS class fix
Also add the missing `end`
Changed 'best practice' with 'guideline'. Closes #29
Merge pull request #21 from bugant/master

they => these in the intro
Corrected typo on inctroduction
Merge branch 'master' of github.com:andreareginato/betterspecs
Merge pull request #22 from stevenharman/master

Fix typo - add `do` to `context` block.
Merge pull request #24 from jasdeepsingh/master

Fixed a wrong css class reference in the "Don't use should" best practice section.
Merge branch 'dev' of github.com:andreareginato/betterspecs into dev
Merge pull request #25 from mperrando/patch-1

Minor fixes
Merge branch 'master' of github.com:andreareginato/betterspecs
Better english on second paragraph. Thanks to @jgandt
Removed better specs also from layout
Changed 'Moking HTTP requests' with 'Stubbing HTTP requests' and added VCR links
Adding of the subtitle to the html title tag (see #31)
Fix typo