yabai: add page (#3831)

pages/osx/yabai.md

@@ -0,0 +1,24 @@
+# yabai
+
+> A tiling window manager for macOS based on binary space partitioning.
+> More information: <https://github.com/koekeishiya/yabai>.
+
+- Set the layout to bsp:
+
+`yabai -m config layout {{bsp}}`
+
+- Set the window gap to 10pt:
+
+`yabai -m config window_gap {{10}}`
+
+- Enable opacity:
+
+`yabai -m config window_opacity on`
+
+- Disable window shadow:
+
+`yabai -m config window_shadow off`
+
+- Enable status bar:
+
+`yabai -m config status_bar on`