Restructuring for new backup solution

roles/svc-db-postgres/Administration.md

@@ -1,7 +1,10 @@
 # Administration
 
 ## Root Access
+
 To access the database via the root account execute the following on the server:
+
 ```bash
-docker exec -it "{{ applications['postgres'].hostname }}" psql -U postgres
+# Assuming the container name is postgres
+docker exec -it postgres psql -U postgres
 ```