Add demo and postgresql driver in docs (#334)

* Add demo and postgresql driver in docs

* 💄

---------

Co-authored-by: Dion Häfner <dion.haefner@simulation.science>

README.md

@@ -15,6 +15,7 @@ modern Python stack, powered by awesome open-source software such as
 and [Rasterio](https://github.com/mapbox/rasterio).
 
 [Read the docs](https://terracotta-python.readthedocs.io/en/latest) |
+[Try the demo](https://terracotta-demo-frontend.orangebeach-11aa4896.westeurope.azurecontainerapps.io/) |
 [Explore the API](https://terracotta-python.readthedocs.io/en/latest/apidoc.html) |
 [Satlas, powered by Terracotta](http://satlas.dk)
 

docs/api.rst

@@ -39,3 +39,8 @@ MySQL metadata store
 ++++++++++++++++++++
 
 .. autoclass:: terracotta.drivers.mysql_meta_store.MySQLMetaStore
+
+PostgreSQL metadata store
++++++++++++++++++++++++++
+
+.. autoclass:: terracotta.drivers.postgresql_meta_store.PostgreSQLMetaStore

docs/concepts.rst

@@ -109,6 +109,13 @@ Currently implemented drivers include:
       excellent candidate for deployments on cloud services, e.g. through
       `AWS Aurora Serverless <https://aws.amazon.com/rds/aurora/serverless/>`__.
 
+   **PostgreSQL + GeoTiff**
+
+      Similar to the SQLite driver, but uses a
+      centralized PostgreSQL database to store metadata. This driver is also an
+      excellent candidate for deployments on cloud services, e.g. through
+      `AWS Aurora Serverless <https://aws.amazon.com/rds/aurora/serverless/>`__.
+
 
 Why serverless?
 ---------------

docs/index.rst

@@ -15,6 +15,10 @@ Use cases
    from S3 buckets. <tutorials/aws>` This allows you to build apps that
    scale almost infinitely with minimal maintenance!
 
+Demo
+----
+Try out a live demo `here <https://terracotta-demo-frontend.orangebeach-11aa4896.westeurope.azurecontainerapps.io/>`_.
+
 
 Installation
 ------------