Merge pull request #10 from enilsen16/master

add ubuntu instructions, add subsections, and remove broken links
Update whitespace and MD formatting for ch 1
Edit installation instructions.

Update markdown to use paras, instead of bullets everywhere.

Update the instructions with a little more prose, and latest version numbers.
Edit the intro with better formating and writing.
Merge pull request #11 from codefellows/br-edits

Edits and updates to the Intro
Edit chapter 1.

Convert to sections.

Write better instructions.

Reformat markdown as needed.
Merge pull request #13 from codefellows/br-edits

Edit chapter 1.