diff --git a/scripts/commit-msg.crs b/scripts/commit-msg.crs
index 4668145..1dad456 100755
--- a/scripts/commit-msg.crs
+++ b/scripts/commit-msg.crs
@@ -7,6 +7,12 @@ use std::process::Command;
 /// Git commit message format check util
 ///
 /// Commit format MUST be <type>(<scope>): subject
+///
+/// Usage:
+/// `commit-msg.crs usage`
+///
+/// Install:
+/// `commit-msg.crs install`
 fn main() {
     let arg1 = env::args().nth(1).unwrap_or_else(|| {
         exit_with_error_message("Commit message is EMPTY!");