Ambiguous instructions on contributing to the project in Contributing.MD

[prashara]

• What Operating System? Windows

• What steps will reproduce the issue? Click on Contributing Guide link on README.md then read the instructions on how to contribute.

• What would you expect to be the outcome? A first time contributor should be able to easily understand the steps and follow through them.

• All these details will help people to fix any potential bugs? The instructions should be clear about which repository should be used to create a branch i.e. a cloned repository or a forked repository. In step three the phrase pop-up box should be removed.

[roseg31]

Partially resolved, transferring remaining info to issue #86