chore: gitpod setup

This commit implements a fully-automated development setup using Gitpod.io, an
online IDE for GitHub and GitLab that enables Dev-Environments-As-Code.
This makes it easy for anyone to get a ready-to-code workspace for any branch,
issue or pull request almost instantly with a single click.

Author: urish

.gitpod.yml

@@ -0,0 +1,13 @@
+tasks:
+  - init: npm install
+    command: npm run storybook
+
+vscode:
+  extensions:
+    - esbenp.prettier-vscode@5.1.3:t532ajsImUSrA9N8Bd7jQw==
+    - dbaeumer.vscode-eslint@2.1.3:1NRvj3UKNTNwmYjptmUmIw==
+    - runem.lit-plugin@1.1.10:/yk3Arh4MIQ3RwIcHwbX3Q==
+
+ports:
+  - port: 6006
+    onOpen: open-preview

README.md

@@ -3,6 +3,7 @@
 Web Components for Arduino and various electronic parts.
 
 [![NPM Version](https://img.shields.io/npm/v/@wokwi/elements)](https://www.npmjs.com/package/@wokwi/elements)
+[![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/wokwi/wokwi-elements)
 
 Check out [the component catalog](https://elements.wokwi.com).