Update cheatsheets

tldr/linux/cage

@@ -16,6 +16,14 @@ source: https://github.com/tldr-pages/tldr.git
 
 `cage -- {{application}} {{arguments}}`
 
+- Hide window [d]ecorations (this can lock you from accessing the terminal):
+
+`cage -d {{application}}`
+
+- Allow [s]witching terminals with `<Ctrl Alt F2>`:
+
+`cage -s {{application}}`
+
 - Display help:
 
 `cage -h`