Merge pull request #84 from sohnjunior/feature/readme

Readme 문서를 추가합니다.

Author: wjdgus09

README.md

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+# 🎨 editty
+
+**Lightweight sketch web-app with vanilla typescript**
+
+Simple web app inspired by FigJam.
+With PWA, It can be installed and used offline.
+
+Developed using Native Web APIs such as Web component, Canvas, IndexedDB, Cache & Storage API and TypeScript.
+
+After drawing with the pen, uploading and editing images, you can save and manage the results as files.
+
+## 🏃 Getting Started
+
+### 1️⃣ Clone repository
+
+```bash
+$ git clone https://github.com/sohnjunior/editty.git
+$ cd editty
+```
+
+### 2️⃣ Install dependencies
+
+```bash
+$ yarn install
+```
+
+### 3️⃣ Run local dev server
+
+```bash
+$ yarn dev
+```
+
+## 🧪 Test
+
+Perform component unit testing with Jest & Jest DOM.
+
+```bash
+$ yarn test
+```
+
+Use Storybook together for component-driven development in an isolated environment.
+
+```bash
+$ yarn storybook
+```
+
+Also, perform component visual testing with Chromatic.
+
+## 🔀 CI & CD
+
+Manage CI/CD with GitHub workflow and Vercel.
+
+When the milestone assigned to each version are completed, a release note is created and the commit version build artifact is converted to production mode.