added tmux basics

Author: shambhushrestha-bpi

terminal/tmux.md

@@ -0,0 +1,10 @@
+## Tmux summary
+1. Installation in osx `brew install osx`.
+2. Start `tmux`
+3. Split panes into left and right `C-b %`
+4. Navigating panes `C-b <arrow key>`. It can be configured to Alt + <arrow key> using the following in .tmux.conf  
+	bind -n M-Left select-pane -L
+	bind -n M-Right select-pane -R
+	bind -n M-Up select-pane -U
+	bind -n M-Down select-pane -D
+5. Exit a pane `exit`