Add documentation on enabling sqlite

charts/prefect-server/README.md

@@ -109,6 +109,29 @@ prefect-server:
     postgresql+asyncpg://{username}:{password}@{hostname}/{database}?ssl=verify-ca
     ```
 
+## SQLite Configuration
+
+SQLite can be used as an alternative to PostgreSQL. As mentioned in the
+[documentation on hosting Prefect](https://docs-3.prefect.io/v3/manage/self-host),
+SQLite is only recommended for lightweight, single-server deployments.
+
+To use SQLite for the database, provide the following configuration values:
+
+```yaml
+postgresql:
+  enabled: false
+sqlite:
+  enabled: true
+```
+
+More configuration options are available in [`values.yaml`](./values.yaml).
+
+By default, a PersistentVolumeClaim persists the SQLite database file between
+Pod restarts.
+
+Note that enabling SQLite enforces 1 replica in the Deployment, and disables
+the HorizontalPodAutoscaler.
+
 ## Maintainers
 
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