Update README.md

Author: inhere

README.md

@@ -24,7 +24,9 @@ Download phar from github releases page
 > Notice: please replace the `{VERSION}` to specified version
 
 ```bash
-wget https://github.com/swoft-cloud/swoft-cli/releases/download/{VERSION}/swoftcli.phar
+# wget https://github.com/swoft-cloud/swoft-cli/releases/download/{VERSION}/swoftcli.phar
+# eg
+wget https://github.com/swoft-cloud/swoft-cli/releases/download/v0.2.6/swoftcli.phar
 
 # quick check
 php swoftcli.phar -V