Add managed connection pooling and execution locking

docs/quick-start.md

@@ -31,6 +31,14 @@ using (var db = new DynamicDatabase(
 
 This setup mirrors `DynamORM.Tests/TestsBase.cs`.
 
+If you do not want `SingleConnection`, but still want managed reuse of open connections, enable `DynamicDatabaseOptions.ConnectionPooling` and configure:
+
+- `db.ConnectionPoolingKeepOpenCount`
+- `db.ConnectionPoolingMaximumOpenCount`
+- `db.ConnectionPoolingConnectionLifetime`
+
+Full details are documented in [Transactions and Disposal](transactions-and-disposal.md).
+
 ## First Query (Dynamic API)
 
 ```csharp