Add Development Instructions 📖

What does this Merge Request do?

It attempts to ease the setup process by including conventional bundler scripts:

• bin/setup

  • Installs dependencies
  • Compiles the C extensions

• bin/console

  • Provides an interactive playgroud

Description of Task to be completed?

Make it easier to get started? Took me a while to realise I had to compile the C extenstion! 🙈

How should this be manually tested?

Run the setup script

$ ./bin/setup

Run the tests

$ bundle exec rake spec

Fire up an interactive session

$ ./bin/console

I hope this proves useful! 🙂