added a basic Hello World html
corrected the missing html tag
created a branch for reference
step-1-startup: added basic angularjs directives
step-1-startup: added basic angularjs directives and added branch
step-2-runtime: created a input box as model, view is linked
step-3-scope: added one controller that defined 2 scopes
added controller and its action
added script.js file for controller, test in Chrome, works
added short note about what is model in README.md