Update README (#19)

* Update the first three sections of the README

* Update "Combining and transforming responses"

* Update logging section

* Update README

* Fix README TOC

Merge pull request #11 from gonzalezreal/deprecate-image-loading

Deprecate image loading functionality

Merge pull request #7 from gonzalezreal/image-downloader-improvements

ImageDownloader downloader improvements

Update README.md

Add documentation and license (#1)

* Add MIT license

* Add package description and endpoint examples

* Add examples for client configuration and combining responses.

* Add examples for image downloading

* Add network stubbing example

* Add TOC