Correct HTTP prefix for the local environment (#25653)

docs/designers-developers/developers/tutorials/create-block/wp-plugin.md

@@ -55,7 +55,7 @@ Let's confirm the plugin is loaded and working.
 wp-env start
 ```
 
-This will start your local WordPress site and use the current directory as your plugin directory. In your browser, go to https://localhost:8888/wp-admin/ and login, the default username is "admin" and password is "password", no quotes.
+This will start your local WordPress site and use the current directory as your plugin directory. In your browser, go to http://localhost:8888/wp-admin/ and login, the default username is "admin" and password is "password", no quotes.
 
 ### Confirm Plugin Installed