Add "go/south+meaning" (cheat.sh#332)

sheets/_go/south meaning

@@ -0,0 +1,15 @@
+go south
+
+## Etymology
+
+(become worse): The origin is unclear. Common belief attributes it to the
+standard orientation of maps, where south is the downwards direction.
+Alternatively, it could stem from a euphemism used by some Native Americans for
+dying.
+
+## Meaning
+
+1. (idiomatic) To become unfavorable; to decrease; to take a turn for the worse.
+2. To make an escape; to disappear.
+3. (slang) To give somebody oral sex.
+

sheets/tmux

@@ -38,6 +38,8 @@ tmux attach-session -t name
 # ---
 #  %  vertical split
 #  "  horizontal split
+#  M-1 select-layout even-horizontal
+#  M-2 select-layout even-vertical
 #
 #  →  go to the left (right, top, bottom) panel
 #  C-→  resize panel to the left (right, top, bottom) panel