update docs for updated HTTP API support

[warengonzaga]

The documentation should be updated based on the PR (#32).
Also, I need a sample usage based on the new implementation of the API wrapper.

[princejoogie]

@warengonzaga you can check sample usage in #32 under examples folder

[warengonzaga]

@princejoogie we should add also the testing to the documenation.

[warengonzaga]

Adding more examples to the documentation.