docs(docker-compose): No need to ask for a context, we set a dummy context in docs

docker-compose/cookiecutter.json

@@ -5,7 +5,5 @@
     "__service_slug": "{{ cookiecutter.service.lower().replace(' ', '_').replace('-', '_') }}",
     "component_list": "{{ cookiecutter.__service_slug }}",
     "__component_list_slug": "{{ cookiecutter.component_list.lower().replace(' ', '_').replace('-', '_') }}",
-    "context": "ctx",
-    "__context_slug": "{{ cookiecutter.context.lower().replace(' ', '_').replace('-', '_') }}",
     "build": ["no", "yes"]
 }