Added Binder badge for the detection and analytics training notebooks

Author: johnwunder

README.md

@@ -14,6 +14,9 @@ Note: this repository is a work in progress. In the coming months we will be add
 3. Install requirements into the virtual environment: `pip3 install -r requirements.txt`
 
 ## Training
+
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/mitre-attack/attack-scripts/master)
+
 This repository also contains Jupyter notebooks and other material for ATT&CK training. The `trainings` directory has that content, which can be launched via Binder. The `binder` directory has requirements for that notebook, per the Binder documentation.
 
 ## Related MITRE Work