added help in readme

README.md

@@ -29,3 +29,28 @@ cargo build -r
 ```sh
 cargo run -r
 ```
+
+### Help
+```s
+Usage: rs48 [OPTIONS]
+
+Options:
+  -s, --size <SIZE>
+          size of the grid on which the game is played [default: 4]
+  -w, --spawn <SPAWN>
+          number of tiles that will spawn on the grid each turn [default: 1]
+      --no-clear
+          disable clearing the terminal to refresh the screen
+  -k, --display-skips <DISPLAY_SKIPS>
+          skips the refresh of that many turns, allow AIs to play faster [default: 0]
+  -d, --delay <DELAY>
+          delay in ms to add between each turns [default: 0]
+  -c, --controller <CONTROLLER>
+          the controller to use for the game [default: player]
+      --color-seed <COLOR_SEED>
+          sets a seed for the color pattern, 0 for random, default is 35 [default: 35]
+  -h, --help
+          Print help information
+  -V, --version
+          Print version information
+```