chore: update readme.md

README.md

@@ -1,14 +1,46 @@
-# Open in github for neovim written in lua (WIP)
+# openingh.nvim :octocat:
+Opens the current project or file page in GitHub.
+  - Features
+    - Supports MacOS, Linux, and maybe Windows 🤷‍♂️
+    - Works with detaches HEAD and support checked out branches
+    - Automatically selects the correct line number in the file page 
 
-## Install
+## Requirements
+
+  - Neovim 0.7.2+
+
+## Installation
+
+[packer](https://github.com/wbthomason/packer.nvim)
+
+```lua
+  use "almo7aya/neogruvbox.nvim"
+```
 
 ## Commands
+
 - `:OpenInGHRepo`
-  - Opens the git repository page in github.com  
+  - Opens the project's git repository page in GitHub.
 
 - `:OpenInGHFile`
-  - Opens the file page in github.com  
+  - Opens the current file page in GitHub.
 
-## Contributions
+## Usage
 
+You can call the commands directly or define mappings them:
+
+```lua
+-- for repository page
+vim.api.nvim_set_keymap("n", "<Leader>gr", ":OpenInGHRepo <CR>", { expr = true, noremap = true })
+
+-- for current file page
+vim.api.nvim_set_keymap("n", "<Leader>gf", ":OpenInGHFile <CR>", { expr = true, noremap = true })
+```
+
+## TODO
+  - [x] Support the current file cursor position
+  - [ ] Support visual mode to open a file in range selection 
+
+## License
+[MIT](./LICENSE)