Update README.md

README.md

@@ -20,7 +20,7 @@ bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.
 
 ## Install custom version
 
-To install your desired version you can add the version to the end of install command. Example for ver `v1.2.6`:
+To install your desired version you can add the version to the end of install command. Example for ver `v1.2.8`:
 
 ```
 bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh) v1.2.8