Align hyperlink text on Tools page

The hyperlink text for "Civic Hacking Icons" on the Tools page is not aligned with the rest of the page.

This pull request:
* Aligns the text with the other links on the page. 
* It also makes the image above it clickable so the user can see it up close if they click on it.
* Fixes #205 

Screenshots below.

Before:
![brigade_before](https://f.cloud.github.com/assets/1596394/704238/65050fda-ddbc-11e2-918d-4ed2c5abd4c3.png)

After: 
![brigade_after](https://f.cloud.github.com/assets/1596394/704243/7e40a252-ddbc-11e2-87d5-86350fbe82fc.png)