Fixed bad link from import (fix upstreamed)

Signed-off-by: Dj Walker-Morgan <[email protected]>

Author: djw-m

product_docs/docs/tpa/23/architecture-PGD-Always-ON.mdx

@@ -8,7 +8,7 @@ originalFilePath: architecture-PGD-Always-ON.md
 !!!Note
 
 This architecture is for Postgres Distributed 5 only. 
-If you require PGD 4 or 3.7 please use [BDR-Always-ON](BDR-Always-ON/).
+If you require PGD 4 or 3.7 please use [BDR-Always-ON](architecture-BDR-Always-ON/).
 
 EDB Postgres Distributed 5 in an Always-ON configuration,
 suitable for use in test and production.