add tmux dotfiles installation

README.md

@@ -12,5 +12,13 @@ curl wget git tree tmux build-essential
 
 ## dotfiles
 
+### tmux
+```bash
+mkdir -p ~/.config/tmux
+git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
+ln -sf $PWD/dotfiles/tmux/tmux.conf ~/.config/tmux/tmux.conf
+ln -sf $PWD/dotfiles/tmux/tmux.reset.conf ~/.config/tmux/tmux.reset.conf
+```
+
 ## contributors
 - agathanonymous