Add Adjusting Window Pane Size as a tmux til.

README.md

@@ -114,6 +114,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 
 ### tmux
 
+- [Adjusting Window Pane Size](tmux/adjusting-window-pane-size.md)
 - [Create A Named tmux Session](tmux/create-a-named-tmux-session.md)
 - [Cycle Through Layouts](tmux/cycle-through-layouts.md)
 - [List All Key Bindings](tmux/list-all-key-bindings.md)

tmux/adjusting-window-pane-size.md

@@ -0,0 +1,15 @@
+# Adjusting Window Pane Size
+
+In tmux, the size of window panes can be adjusted incrementally with the
+`resize-pane` command. For instance, to resize a pane in any direction
+(left, down, up, and right), use one of the following commands
+
+```
+resize-pane -L 10
+resize-pane -D 10
+resize-pane -U 10
+resize-pane -R 10
+```
+
+This will adjust the pane by *10* units in the corresponding direction. Of
+course, other values can be used for more significant size adjustments.