Update cheatsheets

tldr/mullvad

@@ -17,6 +17,14 @@ source: https://github.com/tldr-pages/tldr.git
 
 `mullvad lan set allow`
 
+- Select a server in a specific city:
+
+`mullvad relay set location {{se}} {{mma}}`
+
+- Select a specific server:
+
+`mullvad relay set location {{se-mma-wg-001}}`
+
 - Establish the VPN tunnel:
 
 `mullvad connect`