fix typo (groupdadd -> groupadd)

Vilez0 · lundmar · commit 4a45ffabd37d · 2025-04-05T10:40:05.000+02:00
diff --git a/README.md b/README.md
@@ -149,7 +149,7 @@ you can do the following:
 
 Create an uinput group:
 ```
-$ sudo groupdadd -f uinput
+$ sudo groupadd -f uinput
 ```
 
 Add user to group:
