Add readme

Author: jcs090218

README.md

@@ -1,2 +1,83 @@
+[![License: GPL v3](https://img.shields.io/badge/License-GPL%20v3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)
+[![JCS-ELPA](https://raw.githubusercontent.com/jcs-emacs/badges/master/elpa/v/jcs-screensaver.svg)](https://jcs-emacs.github.io/jcs-elpa/#/jcs-screensaver)
+<a href="https://jcs-emacs.github.io/"><img align="right" src="https://raw.githubusercontent.com/jcs-emacs/badges/master/others/built-with/dark.svg" alt="Built with"></a>
+
 # jcs-screensaver
-A screensaver for jcs-emacs
+> A screensaver for `jcs-emacs`
+
+[![CI](https://github.com/jcs-emacs/jcs-screensaver/actions/workflows/test.yml/badge.svg)](https://github.com/jcs-emacs/jcs-screensaver/actions/workflows/test.yml)
+
+## 🔨 Usage
+
+Just `M-x jcs-screensaver`!
+
+## 🛠️ Contribute
+
+[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](http://makeapullrequest.com)
+[![Elisp styleguide](https://img.shields.io/badge/elisp-style%20guide-purple)](https://github.com/bbatsov/emacs-lisp-style-guide)
+[![Donate on paypal](https://img.shields.io/badge/paypal-donate-1?logo=paypal&color=blue)](https://www.paypal.me/jcs090218)
+[![Become a patron](https://img.shields.io/badge/patreon-become%20a%20patron-orange.svg?logo=patreon)](https://www.patreon.com/jcs090218)
+
+If you would like to contribute to this project, you may either 
+clone and make pull requests to this repository. Or you can 
+clone the project and establish your own branch of this tool. 
+Any methods are welcome!
+
+### 🔬 Development
+
+To run the test locally, you will need the following tools:
+
+- [Eask](https://emacs-eask.github.io/)
+- [Make](https://www.gnu.org/software/make/) (optional)
+
+Install all dependencies and development dependencies:
+
+```sh
+$ eask install-deps --dev
+```
+
+To test the package's installation:
+
+```sh
+$ eask package
+$ eask install
+```
+
+To test compilation:
+
+```sh
+$ eask compile
+```
+
+**🪧 The following steps are optional, but we recommend you follow these lint results!**
+
+The built-in `checkdoc` linter:
+
+```sh
+$ eask lint checkdoc
+```
+
+The standard `package` linter:
+
+```sh
+$ eask lint package
+```
+
+*📝 P.S. For more information, find the Eask manual at https://emacs-eask.github.io/.*
+
+## ⚜️ License
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+See [`LICENSE`](./LICENSE) for details.