:gear: Adds devcontainer config

.devcontainer/devcontainer.json

@@ -0,0 +1,13 @@
+{
+  "name": "Awesome Django Codespace",
+  "image": "mcr.microsoft.com/vscode/devcontainers/base:0-focal",
+  "settings": {
+    "terminal.integrated.shell.linux": "/bin/bash"
+  },
+  "extensions": [
+    "github.github-vscode-theme"
+  ],
+  "forwardPorts": [4000],
+  "postCreateCommand": "bundle install",
+  "remoteUser": "vscode"
+}