Update README.md
Merge branch 'develop' of github.com:berkes/tubemp into develop

* 'develop' of github.com:berkes/tubemp:
  Update README.md
Remove done items from todos
introduce json
Make default HTML response work again.
fix unit-tests to match new keyed return for #tags
keyed tags now in rendering too.
send content-type json for json.
Add documentation for JSON array.
Merge branch 'feature/json-api' into develop

* feature/json-api:
  Add documentation for JSON array.
  send content-type json for json.
  keyed tags now in rendering too.
  fix unit-tests to match new keyed return for #tags
  Make default HTML response work again.
  introduce json
Merge branch 'release/0.3.0'

* release/0.3.0:
  Add documentation for JSON array.
  send content-type json for json.
  keyed tags now in rendering too.
  fix unit-tests to match new keyed return for #tags
  Make default HTML response work again.
  introduce json
  Remove done items from todos
  Update README.md