feat: add support for dev containers (#2287)

* chore: add support for dev containers

* docs: update contribution guide

.devcontainer/Dockerfile

@@ -0,0 +1,4 @@
+FROM node:12
+
+# Add global instances of prettier and eslint for vscode
+RUN npm install -g eslint prettier

.devcontainer/devcontainer.json

@@ -0,0 +1,10 @@
+{
+  "name": "webpack-cli",
+  "dockerFile": "Dockerfile",
+  "runArgs": ["-u", "node"],
+  "settings": {
+    "terminal.integrated.shell.linux": "/bin/bash"
+  },
+  "postCreateCommand": "yarn install && yarn bootstrap && yarn build",
+  "extensions": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode"]
+}

.github/CONTRIBUTING.md

@@ -80,6 +80,8 @@ In case you are suggesting a new feature, we will match your idea with our curre
     yarn build
     ```
 
+> If you are a Docker and Visual Studio Code user, you can quickstart development using [Remote - Containers](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-containers) Extension
+
 ## Running Tests
 
 ### Using yarn