update README

.github/workflows/backend.yml

@@ -27,6 +27,7 @@ jobs:
       with:
         username: ${{ secrets.DOCKER_USERNAME }}
         password: ${{ secrets.DOCKER_PASSWORD }}
+        path: ./backend/
         dockerfile: ./backend/Dockerfile
         repository: parity/substrate-telemetry-backend
         push: ${{ startsWith(github.ref, 'refs/tags/') }}

.github/workflows/frontend.yml

@@ -41,6 +41,7 @@ jobs:
       with:
         username: ${{ secrets.DOCKER_USERNAME }}
         password: ${{ secrets.DOCKER_PASSWORD }}
+        path: ./frontend/
         dockerfile: ./frontend/Dockerfile
         repository: parity/substrate-telemetry-frontend
         push: ${{ startsWith(github.ref, 'refs/tags/') }}

README.md

@@ -54,6 +54,8 @@ polkadot --dev --telemetry-url ws://localhost:8000/submit
 
 ## Docker
 
+*Pre-built docker images are available at `parity/substrate-telemetry-frontend` and `parity/substrate-telemetry-backend`.*
+
 ### Run the backend and frontend
 
 Obviously, the frontend need to be aware of the backend. In a similar way, your node will need to connect to the backend.