Announce project move to duckdb/duckdb-go (#564)

* Announce project move to duckdb/duckdb-go

* Mention that licensed is unchanged

* Add deprecation notice

Author: mlafeldt

README.md

@@ -1,3 +1,28 @@
+> [!IMPORTANT]
+> **This project has moved to [github.com/duckdb/duckdb-go](https://github.com/duckdb/duckdb-go) starting with `v2.5.0`.**
+>
+> **To migrate:** Update your import paths from `github.com/marcboeker/go-duckdb` to `github.com/duckdb/duckdb-go`.
+> **→ [Full migration guide](https://github.com/duckdb/duckdb-go/blob/main/README.md#migration-from-marcboekergo-duckdb)**
+
+Over the last few years, the Go client has become a [primary DuckDB client](https://duckdb.org/docs/stable/clients/overview).
+We'd like to thank [Marc Boeker](https://github.com/marcboeker) for all his work on creating this driver and implementing the various interfaces of the `database/sql` package!
+We'd also like to thank all the other external contributors for their various PRs and other contributions.
+
+With the driver being a primary DuckDB client, over the last years, the DuckDB team has gradually increased its involvement in the maintenance of the driver,
+to guarantee that it is constantly updated and that critical bugs (e.g., crashes) are fixed.
+Now we have a Long-Term Support release, so starting from early next year, we will have two releases in parallel (v1.4 LTS and v1.5).
+Additionally, more DuckDB customers use and rely on the Go client, which necessitates prioritization of certain features from us.
+
+These points all add to the maintenance work, which the DuckDB team is happy to perform!
+However, the motivation behind this fork, which is a joint effort of Marc Boeker and the DuckDB team,
+is to fully transfer the maintenance and day-to-day work of the driver to the DuckDB team.
+That being said, the DuckDB Go client has become what it is also due to its many contributions from the community,
+and we are looking forward to your future PRs, issues, and discussions!
+
+The license is unchanged: the migrated repository keeps the original MIT license, which is the same for core DuckDB and other primary clients.
+
+---
+
 # Go SQL Driver For [DuckDB](https://github.com/duckdb/duckdb)
 ![Tests status](https://github.com/marcboeker/go-duckdb/actions/workflows/tests.yaml/badge.svg)
 [![GoDoc](https://godoc.org/github.com/marcboeker/go-duckdb/v2?status.svg)](https://pkg.go.dev/github.com/marcboeker/go-duckdb/v2)

go.mod

@@ -1,3 +1,5 @@
+// Deprecated: This module has moved to github.com/duckdb/duckdb-go.
+// See https://github.com/duckdb/duckdb-go for migration instructions.
 module github.com/marcboeker/go-duckdb/v2
 
 go 1.24