broken links fixed
appended link to the new guide for detecting touristic autism-friendly spots
Fix minor markdown formatting issues

Both pages contained minor markdown formatting issues, mostly related to
whitespace. This commit fixes that.

- <http://guides.railsgirls.com/guide-to-the-guide/>
- <http://guides.railsgirls.com/guide/>
Merge pull request #189 from jreyes33/master

Fix minor markdown formatting issues