Fix link paths in release notes

Author: marcelkost

website/docs/releases.md

@@ -27,7 +27,7 @@ In case you are wondering why all our releases start with `0.0`, read [this FAQ
 ###  0.0.21178 [Jan 16 2024]
 
 * Support for Microsoft Azure Blob Storage using [`azure_location`](./sql/external/location.md#microsoft-azure-blob-storage) was added.
-* Documented [`starts_with`](./sql/scalar_func/string) and [`ends_with`](./sql/scalar_func/string), as well as negative field positions for [`split_part`](./sql/scalar_func/string).
+* Documented [`starts_with`](./sql/scalar_func/string.md) and [`ends_with`](./sql/scalar_func/string.md), as well as negative field positions for [`split_part`](./sql/scalar_func/string.md).
 
 
 ###  0.0.20746 [Nov 7 2024]