chore: configure gitpod (#50)

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.

2 files changed, 13 insertions, 0 deletions

diff --git a/.gitpod.yml b/.gitpod.yml
new file mode 100644
index 0000000..4547353
--- /dev/null
+++ b/.gitpod.yml
@@ -0,0 +1,12 @@
+tasks:
+  - init: npm install
+    command: npm run start
+
+vscode:
+  extensions:
+    - esbenp.prettier-vscode@5.1.3:t532ajsImUSrA9N8Bd7jQw==
+    - dbaeumer.vscode-eslint@2.1.3:1NRvj3UKNTNwmYjptmUmIw==
+
+ports:
+  - port: 1234
+    onOpen: open-preview
diff --git a/README.md b/README.md
index bc1e852..15aa573 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ JavaScript implementation of the AVR 8-bit architecture
 
 [![Build Status](https://travis-ci.org/wokwi/avr8js.png?branch=master)](https://travis-ci.org/wokwi/avr8js)
 [![NPM Version](https://img.shields.io/npm/v/avr8js)](https://www.npmjs.com/package/avr8js)
+[![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/wokwi/avr8js)
 
 ## Running the demo project