Fix typo

website/docs/linux/ddns.md

@@ -62,7 +62,7 @@ Enable `overridePublicIP` by deleting the `#` prepending the line. Replace the p
 ```
 Press <kbd>Ctrl</kbd> + <kbd>s</kbd> then <kbd>Ctrl</kbd> + <kbd>x</kbd>
 
-For the change to take affect restart the `xxnetwork-cmix` service.
+For the change to take effect restart the `xxnetwork-cmix` service.
 ```
 sudo systemctl restart xxnetwork-cmix.service
 ```
@@ -85,7 +85,7 @@ Ensure that `cmixAddress` specifies a port. The default port is 11420.
 :::
 Press <kbd>Ctrl</kbd> + <kbd>s</kbd> then <kbd>Ctrl</kbd> + <kbd>x</kbd>
 
-For the change to take affect restart the `xxnetwork-gateway` service.
+For the change to take effect restart the `xxnetwork-gateway` service.
 
 ```
 sudo systemctl restart xxnetwork-gateway.service
@@ -125,7 +125,7 @@ overridePublicIP: "mygateway.ddns.com"
 ```
 Press <kbd>Ctrl</kbd> + <kbd>s</kbd> then <kbd>Ctrl</kbd> + <kbd>x</kbd>
 
-For the change to take affect restart the `xxnetwork-gateway` service.
+For the change to take effect restart the `xxnetwork-gateway` service.
 ```
 sudo systemctl restart xxnetwork-gateway.service
 ```