Adds HTML and CSS files, updates README.
Improved Code Readability
Adds the capability to list previous inputs and whether they were high or low
Adds input validation and ensures that nothing happens after the game is finished.
Adds CSS to make it look prettier, fixes a bug that could make it so the user could input an eighth guess
Added Difficulty, Reset button, and limited the number of previous guesses logged on screen. Also added Win/Loss counters.
Merge pull request #1 from markableidinger/marksChanges

Mark's changes