Put basic index file together

Also, added to read me file
connected index to style sheet
connected html to js file
Says hello when you hit enter
takes contents of message box using the send button and places them upon the diplaySpace. Next maneuver is to make an event listener for the enter key in the text box
Tidied script.js

Removed commented out debugging and example code lines.

Added more useful commenting.
return key works for putting message in display area.
Merge pull request #1 from Seonaid/Develop-html-file

Develop html file