chore: add development environment (#2095)

* feat: add development environment

* refactor: update README

* refactor: update README and run yarn denoify

* refactor: update CONTRIBUTING

.devcontainer/Dockerfile

@@ -10,3 +10,5 @@ RUN curl -fsSL https://bun.sh/install | bash
 
 # Install Lagon
 RUN yarn global add @lagon/cli esbuild
+
+WORKDIR /hono

.devcontainer/docker-compose.yml

@@ -0,0 +1,18 @@
+version: '3'
+
+services:
+  hono:
+    build: .
+    container_name: hono
+    volumes:
+      - ../:/hono
+    networks:
+      - hono
+    command: bash
+    stdin_open: true
+    tty: true
+    restart: 'no'
+
+networks:
+  hono:
+    driver: bridge

docs/CONTRIBUTING.md

@@ -36,3 +36,11 @@ It may be under the "honojs organization" and distributed in the `@honojs` names
 
 The monorepo "[honojs/middleware](https://github.com/honojs/middleware)" manages these middleware.
 If you want to do it, create the issue about your middleware.
+
+## Local Development
+
+```
+git clone git@github.com:honojs/hono.git && cd hono/.devcontainer && yarn install
+docker compose up -d --build
+docker compose exec hono bash
+```