Fix various typos and whitespace/syntax inconsistencies

Cheers James,

I watched your angular-sprout talk on YouTube tonight and was excited to peruse the source.

I've started a habit of forking repos before studying the source and fixing typos I notice along the way. Here's the result of my perusal. I hope it's helpful!

Thanks so much for creating this project. It has clarified much for me. It looks like a great foundation to build upon!

All the best,

-Jedidiah