Updated using feedback

1. I listed three different Markdown flavors and links to more information on them. As well, I included a link to more information about the push for a standard Markdown implementation.

2. I reworded the "Creating a Markdown Document" section.

3. I reformatted each section from bullet points to paragraphs.

4. I added an example of embedding a link.

5. After researching it I was unable to find specific characters that could not be escaped so I reworded the section.

6. I added the result of the HTML example.

7. In the README tutorial I merged the "Example" section into the "Program Overview" section.

Other then that I expanded on some sections and added examples in the README tutorial, I also added a "Things not to do" section to it.