Expand README with new test projects

Expand the README file with short descriptions on some JavaScript test projects. history.html testing HTML5 History API and Bezier combining SVG with HTML5 Drag and Drop to help timing with SVG Animations.
Flowchart DnD

Adding HTML5 Drag and Drop to reposition those text boxes.
Lesson learned: jQuery doesn't work with DnD events, at least not
version 1.7
Flowchart DnD

Adding HTML5 Drag and Drop to my Flowchart GUI for moving the text
boxes.