chore: Add license

Author: dimtion

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 dimtion
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,5 +1,14 @@
 # GutterMarks.nvim
 
+<div align="center">
+    [![Lua](https://img.shields.io/badge/Lua-blue.svg?style=for-the-badge&logo=lua)](http://www.lua.org)
+    [![Neovim](https://img.shields.io/badge/Neovim%200.9+-green.svg?style=for-the-badge&logo=neovim)](https://neovim.io)
+    [![MIT](https://img.shields.io/badge/MIT-yellow.svg?style=for-the-badge)](https://opensource.org/licenses/MIT)
+    <a href="https://dotfyle.com/plugins/dimtion/guttermarks.nvim">
+    <img src="https://dotfyle.com/plugins/dimtion/guttermarks.nvim/shield?style=for-the-badge" />
+  </a>
+</div>
+
 A Neovim plugin that displays
 [marks](https://neovim.io/doc/user/motion.html#_7.-marks) in the buffer gutter
 as signs. Keep track of your marks visually with customizable appearance and