Update README.md

README.md

@@ -1,2 +1,15 @@
 # SalesforceDX_CCI_DEV
-SalesforceDX with CumulusCI Dockerfile for use with Remote Development
+Docker Image File with SalesforceDX and CumulusCI. For use with Remote Development
+
+## Requirements
+VSCode with SalesforceDX Pack and Remote Development Pack
+
+https://marketplace.visualstudio.com/items?itemName=salesforce.salesforcedx-vscode-expanded
+https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.vscode-remote-extensionpack
+
+## Install 
+1. Add a .devcontainer folder to the root of your SalesforceDX or CumulusCI Project. Then download and add the files in this repo to that folder.
+2. From Command Pallette in VSCode, launch "Remote-Containers: Reopen in Container"
+3. Done
+
+The first time you run this it will build the image, so can take a few minutes to complete.