Nicer alignment of avatar with menu.

## Hark! A nitpicky pull request awaits you.

This is a small tweak to your CSS that will align the user avatar with the navigation menu. Also fixed a typo in the HTML for the same. Sweet medicine for the perfectionists among us. :joy:

![Before and After](https://www.evernote.com/shard/s33/sh/ce7144d3-323a-487f-912c-eafe4aa86583/5ec03b68bc1a25daf3ecc3cdd80e2d2e/res/b4defa8c-115a-44b1-b34f-9645636860eb/skitch.png)