Add: Content under HTML, CSS, and Javascript section; Rea: all list items to include a period at the end, also includes more concise code examples

Adds more standards under the HTML and CSS sections. Begins building out the Javascript section. I'm sure more can go in there. Also, increases the readability of some of the wording through the document, renames some sections, and uses more concise code examples for the standards that are currently in place. Code examples are very important!

fixes #5