Added a short explanation how to run devcontainer (#76)

* Added a short explanation how to run devcontainer

Author: jahknem

README.md

@@ -62,6 +62,20 @@ PLUGINS_CONFIG = {
 }
 ```
 
+## Developing
+
+### VSCode + Docker + Dev Containers
+
+To develop this plugin further one can use the included .devcontainer configuration. This configuration creates a docker container which includes a fully working netbox installation. Currently it should work when using WSL 2. For this to work make sure you have Docker Desktop installed and the WSL 2 integrations activated.
+
+1. In the WSL terminal, enter `code` to run Visual studio code.
+1. Install the devcontainer extension "ms-vscode-remote.remote-containers"
+1. Press Ctrl+Shift+P and use the "Dev Container: Clone Repository in Container Volume" function to clone this repository. This will take a while depending on your computer
+1. If you'd like the netbox instance to be prepopulated run `make Makefile example_initializers` and `make Makefile load_initializers`
+1. Start the netbox instance using `make Makefile all`
+
+Your netbox instance will be served under 0.0.0.0:8000 so it should now be available under localhost:8000.
+
 ## Screenshots
 
 Access List - List View