xfreerdp: add examples (#8096)

pages/linux/xfreerdp.md

@@ -10,3 +10,15 @@
 - Connect to a FreeRDP server and activate audio output redirection using `sys:alsa` device:
 
 `xfreerdp /u:{{username}} /p:{{password}} /v:{{ip_address}} /sound:{{sys:alsa}}`
+
+- Connect to a FreeRDP server with dynamic resolution:
+
+`xfreerdp /v:{{ip_address}} /u:{{username}} /p:{{password}} /dynamic-resolution`
+
+- Connect to a FreeRDP server with clipboard redirection:
+
+`xfreerdp /v:{{ip_address}} /u:{{username}} /p:{{password}} +clipboard`
+
+- Connect to a FreeRDP server ignoring any certificate checks:
+
+`xfreerdp /v:{{ip_address}} /u:{{username}} /p:{{password}} /cert:ignore`