docs: add DuckDB documentation to README

Author: rriski

README.md

@@ -41,6 +41,7 @@ Database drivers run migrations. [Add a new database?](database/driver.go)
 * [CockroachDB](database/cockroachdb)
 * [YugabyteDB](database/yugabytedb)
 * [ClickHouse](database/clickhouse)
+* [DuckDB](database/duckdb)
 * [Firebird](database/firebird)
 * [MS SQL Server](database/sqlserver)
 * [rqlite](database/rqlite)

database/duckdb/README.md

@@ -0,0 +1,13 @@
+# DuckDB
+
+`duckdb://path/to/database.db`
+
+| URL Query  | Description |
+|------------|-------------|
+| `x-migrations-table` | Name of the migrations table (default: `schema_migrations`) |
+
+## Notes
+
+* DuckDB is an in-process SQL OLAP database management system.
+* Uses the official DuckDB Go driver: [github.com/duckdb/duckdb-go/v2](https://github.com/duckdb/duckdb-go)
+* Supports in-memory databases using `:memory:` as the path.