Add documentation for realm provisioning

docs/src/main/paradox/docs/getting-started/running-nexus/configuration/index.md

@@ -20,7 +20,7 @@ In order to successfully run Nexus Delta there is a minimum set of configuration
 
 The configuration flag `akka.http.server.parsing.max-content-length` can be used to control the maximum payload size allowed for Nexus Delta resources. This value applies to all posted resources except for files.
 
-### Postgres configuration
+## Postgres configuration
 
 @link:[The `database` section](https://github.com/BlueBrain/nexus/blob/$git.branch$/delta/app/src/main/resources/app.conf#L23){ open=new } of the configuration defines the postgres specific configuration. As Nexus Delta uses three separate pools ('read', 'write', 'streaming'), it is recommended to set the host, port, database name, username, and password via the `app.defaults.database` field, as it will apply to all pools. It is however possible to accommodate more advanced setups by configuring each pool separately by changing its respective `app.database.{read|write|streaming}` fields. 
 
@@ -55,6 +55,43 @@ Nexus Delta uses a service account to perform automatic tasks under the hood. Ex
 
 @link:[The `service-account` section](https://github.com/BlueBrain/nexus/blob/$git.branch$/delta/app/src/main/resources/app.conf#L427){ open=new } of the configuration defines the service account configuration.
 
+## Realm provisioning
+
+Realm provisioning allows to create one or several realm at startup.
+
+It is useful to start a new deployment with having to call the @ref:[realm API](../../../delta/api/realms-api.md) to create those.
+
+Exemple:
+```hocon
+realms {
+    #...
+
+    # To provision realms at startup
+    # Only the name and the OpenId config url are mandatory
+    provisioning {
+      enabled = true
+      realms {
+         my-realm = {
+          name = "My realm name"
+          open-id-config = "https://.../path/.well-known/openid-configuration"
+          logo = "https://bbp.epfl.ch/path/favicon.png"
+          accepted-audiences = ["audience1", "audience2"]
+        }
+      }
+    }
+  }
+```
+
+@@@ note { .warning }
+
+Realm provisioning will only create realms.
+If a realm with the same identifier exists it will not be updated.
+
+@@@
+
+@link:[The `realms.provisioning` section](https://github.com/BlueBrain/nexus/blob/$git.branch$/delta/app/src/main/resources/app.conf){ open=new } of the configuration defines the service account configuration.
+
+
 ## Automatic project provisioning
 
 Automatic project provisioning allows to create a dedicated project for users the first time they connect to Delta that is to

docs/src/main/paradox/docs/releases/v1.11-release-notes.md

@@ -14,19 +14,25 @@ For the detailed list of updates in this release, see the @link:[list of address
 This feature allows to reduce the pressure on the primary store by changing the way indexing routines for views (but also graph-analytics) 
 behaves when they have processed all available data.
 
-More @ref:[here](../delta/api/views/index.md#passivation)
+@ref:[More here](../delta/api/views/index.md#passivation)
 
 ### Conditional requests
 
-Nexus now supports conditional requests
+Nexus now supports conditional requests.
 
-More @ref[here](../delta/api/conditional-requests.md)
+@ref[More here](../delta/api/conditional-requests.md)
+
+### Realm provisioning
+
+Nexus now allows to provision realms at start up so as to simplify automated deployments.
+
+@ref[More here](../getting-started/running-nexus/configuration/index.md#realm-provisioning)
 
 ### Remote storage server
 
 The remote storage server part has been removed.
 
-The client is deprecated and remains with @link:[the remote storage in 1.10](https://hub.docker.com/r/bluebrain/nexus-storage/tags).
+The client is deprecated and remains compatible with @link:[the remote storage in 1.10](https://hub.docker.com/r/bluebrain/nexus-storage/tags).
 
 ## Nexus Fusion