Update README.rst

updated to add angular example (instigated by a quick glance at http://blog.campoy.cat/2013/12/writing-moder-web-app-with-go-tdd-rest.html)
Update README.rst

adding comparisons of ember, angular, knockout - this is not about MVVM;  it's about 2-way data binding, and essentially a "one-page" client-side "web app" (as is popular to call it these days).
Update README.rst
Update README.rst