Update to Readme.md

I updated and rearranged some of the items in the readme file. There is now clearer headings for everything. Requirements were moved from the requirements.txt file, cleaned up a little, and download/information links were added to each one. Note: There are a couple programs that have been updated since this repo was made; I believe Twillio and Gunicorn. I don't know if that will affect your program, so I kept the version numbers the same in your original readme.

Edit: I also removed the requirements.txt file since all information was moved to the readme.

Happy Holidays!

Sincerely, Jim Gallaher