Remove links to old demo (fixes #308)

Author: DavidMStraub

.github/workflows/image.yml

@@ -40,16 +40,3 @@ jobs:
             --tag dmstraub/gramps-webapi:${{ github.event.release.tag_name }} \
             --tag dmstraub/gramps-webapi:latest \
             --platform linux/amd64,linux/arm/v7,linux/arm64 .
-
-  deploy:
-    needs: build
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - uses: akhileshns/[email protected]
-      with:
-        heroku_api_key: ${{secrets.HEROKU_API_KEY}}
-        heroku_app_name: gramps-webapi-demo
-        heroku_email: ${{secrets.HEROKU_EMAIL}}
-        usedocker: true
-        appdir: demo

README.md

@@ -10,10 +10,10 @@ The documentation of the current state of the API can be browsed with Swagger:
 
 The project is still under development, so API changes should be expected.
 
-## Demo Server
-
-A demo server is available at https://gramps-webapi-demo.herokuapp.com/api/metadata
-
 ## Documentation
 
 The project's documentation is hosted at https://gramps-project.github.io/web/.
+
+## Demo Server
+
+See the documentation site for a link to the demo server.