feature: updated readme

Author: AlexanderHeidrich

README.md

@@ -15,8 +15,8 @@ composer require basilicom/er-diagram-xml-export-bundle
 
 ### Usage
 ```
-bin/console basilicom::create-er-diagram-xml-export 
-bin/console basilicom::create-er-diagram-xml-export <filename>
+bin/console basilicom:create-er-diagram-xml-export 
+bin/console basilicom:create-er-diagram-xml-export <filename>
 ```
 
 The generated file will be saved in the `var/bundles/ERDiagramXMLExportBundle` folder with filename `pimcore.graphml` or the given `<filename>.graphml`.