Update exclusions.md - delete one symbol

docs/adguard-vpn-for-linux/exclusions.md

@@ -53,6 +53,6 @@ where %mode_name% is `general` or `selective`.
 
 The commands listed above (`add`, `remove`, `show`, `clear`) are applied to the exclusion list of the current mode. To perform a command for a specific mode, add `--for-mode %mode_name% type`, for example:
 
-    adguardvpn-cli site-exclusions add %domain_name% --for-mode %mode_name%`
+    adguardvpn-cli site-exclusions add %domain_name% --for-mode %mode_name%
 
 :::