Add motaz-shokry/gruvbox-tmux (#149)

* adding motaz-shokry/gruvbox-tmux

* adding motaz-shokry/gruvbox-tmux

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Co-authored-by: Motaz Shokry <[email protected]>

Author: motaz-shokry

README.md

@@ -96,6 +96,7 @@ List of helpful tmux links for various tutorials, plugins, and configuration set
 - [tokyo-night-tmux](https://github.com/janoamaral/tokyo-night-tmux) tokyo-night theme for tmux
 - [tomorrow](https://github.com/edouard-lopez/tmux-tomorrow/): 5 flavors of Tomorrow theme based on specifications from [Tomorrow Theme](https://github.com/chriskempson/tomorrow-theme) (_i.e._ _dark_/_blue_ and _light_).
 - [tmux-kanagawa](https://github.com/Nybkox/tmux-kanagawa): Dark colorscheme inspired by the colors of the famous painting by Katsushika Hokusai.
+- [gruvbox-tmux](https://gitlab.com/motaz-shokry/gruvbox-tmux): A clean Tmux theme that follows the [gruvbox](https://github.com/morhetz/gruvbox) colors
 
 ## Status Bar