added readme for Cloud9

Author: Anubhav Sharma

Cloud9Setup/README.md

@@ -0,0 +1,15 @@
+
+Use the script below to increase the disk size of your Cloud9 instance to 50 GB. 
+```
+./increase-disk-size.sh
+```
+
+Run the script below to install the pre-requistes.
+```
+./pre-requisites.sh
+```
+
+Run the below script in the newly opened terminal to check if all the pre-requisites were installed correctly
+```
+./pre-requisites-versions-check.sh
+```