1 files changed, 4 insertions, 3 deletions
diff --git a/README.md b/README.md
index 5705e43..a7409ad 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@ You can run tests:
 
 ### Running
 
-Usage:
-
-    ./engine
+    Usage: ./engine [-tg] [--term] [--graphical]
+      -h, --help        show usage (this)
+      -t, --term        terminal mode
+      -g, --graphical   graphical mode (default)