Update docs/app-developer-guide/index.md

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: akremenetsky

docs/app-developer-guide/index.md

@@ -148,7 +148,7 @@ genesis push -c genesis.push.yaml
 ### Deploy the element
 
 ```bash
-genesis elements install -r http://repository-:8080 todo-api
+genesis elements install todo-api
 ```
 
 The ToDo API is now available at the configured endpoint.