Change the games folder to maps and add it to the gitignore, updating the USAGE text to reflect this

USAGE.txt

@@ -0,0 +1,56 @@
+To convert this file to c++ syntax use
+$ cat USAGE.txt | sed 's/\t/\\t/g' | sed ':a;N;$!ba;s/\n/\\n\n/g' | sed 's/^/"/' | sed 's/$/"/'
+
+NAME
+	ttrts - Tiny Terminal RTS
+
+SYNOPSYS
+	ttrts [OPTIONS...] MAPFILE
+
+DESCRIPTION
+	ttrts is a tiny terminal based RTS where that uses text files as order lists to control it's units.
+
+	This means that any user, program or cat that can read and write to text files can play the game.
+
+USAGE
+	When invoked, ttrts will set up a full game and output a single file representing the current gamestate into a local directory called ttrts_{GAME_NAME}.
+
+	This file can be read in and interpretted by human, robot, or cat.
+	ttrts will wait for orders files to be placed in it's current working directory.
+
+	File name formats:
+	  gamestate   Turn_{TURN_NUMBER}.txt
+	  orders      Turn_{TURN_NUMBER}_Team_{TEAM_NUMBER}.txt
+
+	Once orders have been set for each player taking part, ttrts consumes order files,
+	calculates new game state and outputs a new file.
+
+	This process repeats until a winner is chosen!
+
+OPTIONS
+	MAPFILE:
+		File to read in the initial game state from
+
+GAMESTATE FILE FORMAT
+	Name
+		Turn_{TURN_NUMBER}.txt
+	Contents
+		===== {GAME_NAME} =====
+		SIZE:[{X},{Y}]
+		TURN:{TURN_NUMBER}
+		~~~~
+		UNIT:{UNIT_ID} tm:{TEAM_NUMBER} vs:{VISUAL} dr:{DIRECTION(NESW)} ps:[{X},{Y}]
+		...
+
+ORDER FILE FORMAT
+	Name
+		Turn_{TURN_NUMBER}_Team_{TEAM_NUMBER}.txt
+	Contents
+		ORDER:{ORDER_CHAR} id:{UNIT_ID}
+		...
+
+ORDERS
+	F   - Move unit forward one space
+	L/R - Rotate unit left or right
+	A   - Attack space in front of unit
+