Added information to run the mocha tests and information on pull requ…

[joshualan]

…ests

PR Checklist

• [x] Read our contributing guidelines: https://github.com/progress/JSDO/blob/master/contributing.md#contribute-to-the-code-base.

[Describe the impact of the changes here. Please include issue # if applicable.] Updating the readme.md for ADAS-7323