Update README with github actions status badge (#27)

Sorry for ruining the nice triangular shape of the badges.

README.md

@@ -1,5 +1,5 @@
 ![PyPI - Status](https://img.shields.io/pypi/status/crowdstrike-falconpy)<br/>
-![PyPI](https://img.shields.io/pypi/v/crowdstrike-falconpy) ![PyPI - Downloads](https://img.shields.io/pypi/dm/crowdstrike-falconpy)<br/>
+![PyPI](https://img.shields.io/pypi/v/crowdstrike-falconpy) ![PyPI - Downloads](https://img.shields.io/pypi/dm/crowdstrike-falconpy) ![CI Tests](https://github.com/CrowdStrike/falconpy/workflows/Python%20package/badge.svg)<br/>
 ![PyPI - Implementation](https://img.shields.io/pypi/implementation/crowdstrike-falconpy) ![PyPI - Python Version](https://img.shields.io/pypi/pyversions/crowdstrike-falconpy) ![PyPI - Wheel](https://img.shields.io/pypi/wheel/crowdstrike-falconpy)<br/>
 ![Twitter URL](https://img.shields.io/twitter/url?label=Follow%20%40CrowdStrike&style=social&url=https%3A%2F%2Ftwitter.com%2FCrowdStrike)<br/>
 
@@ -94,4 +94,4 @@ See the wiki for extended documentation: [https://github.com/CrowdStrike/falconp
 *Coming soon*.
 
 ## Blogs/Articles/Prose
-*Coming soon*.
+*Coming soon*.