Typos in workingwithtw/

This includes placing commas and full stops outside the quotes, and replacing single quotes with the double quotes that seem to be the standard on tw.com.
Typos in workingwithtw/
Typos in workingwithtw/
Typos in workingwithtw/
Typos in workingwithtw/
Typos in workingwithtw/
Typos in workingwithtw/
Typos in workingwithtw/
Merge pull request #1261 from aelocson/patch-2

Standardise punctuation in workingwithtw/