update readme

Author: zefir-git

README.md

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 # EnchantBookPlus
+
+[![CodeQL](https://github.com/cloudnode-pro/EnchantBookPlus/actions/workflows/codeql.yml/badge.svg)](https://github.com/cloudnode-pro/EnchantBookPlus/actions/workflows/codeql.yml)
+[![Modrinth](https://img.shields.io/badge/Modrinth-%2326292f?logo=modrinth)](https://modrinth.com/plugin/dMOPYb3s/)
+[![Version](https://img.shields.io/modrinth/v/dMOPYb3s)](https://modrinth.com/plugin/dMOPYb3s/)
+[![Game Versions](https://img.shields.io/modrinth/game-versions/dMOPYb3s)](https://modrinth.com/plugin/dMOPYb3s/)
+[![Downloads](https://img.shields.io/modrinth/dt/dMOPYb3s)](https://modrinth.com/plugin/dMOPYb3s/)
+
 Combine enchantment books to achieve levels above vanilla
+
+## How it works
+This plugin allows you to combine enchantments, e.g. Efficiency V + Efficiency V = Efficiency VI. This is done by using an anvil.
+
+You can configure which enchantments can be combined above the Vanilla Minecraft levels. You can set the max level for each enchantment, and add XP cost in levels.
+
+## Reporting issues
+Fixing bugs is the utmost priority for this project. If you find any issue, check the [GitHub Issue Tracker](https://github.com/cloudnode-pro/EnchantBookPlus/issues) to see if it has already been reported. If not, create a new issue.
+
+When creating a new issue, include as many relevant details as possible, e.g.:
+
+ - Minecraft server type and version (e.g. Paper 1.20.1)
+ - Plugin version (e.g. 1.0.0)
+ - Warnings and errors related to this plugin in the console
+ - Steps to reproduce the issue
+
+### Contributing
+Anyone is welcome to contribute to this project.
+
+To contribute:
+
+1. [Fork the repository](https://github.com/cloudnode-pro/EnchantBookPlus/fork)
+2. Make your changes in your forked repository
+3. Create a pull request
+
+Pull requests require approval and changes may be requested before merging to the main branch.
+
+Contributions of any kind are most welcome and are given full credit.
+
+### License
+This is libre software, meaning that it is forever free and open source, licensed under the GNU General Public License version 3. You can read the [full license](https://github.com/cloudnode-pro/EnchantBookPlus/blob/main/LICENSE).