kotlin-native

Ktor now uses native-mt coroutines, we should update all the related Ktor info in our readme.

Describe the problem or limitation you are having in your project:
To make pull requests more consistent, we should provide a pull request template.

Describe how this feature / enhancement will help you overcome this problem or limitation:
It directly related to #11 but can be done separately.

**Show a mock up screenshots/video or a flow diagram explaining how your proposal will wo

The README is pretty small at the moment. It’d be great to have a few example usages listed.