Fixed link to PostgreSQL's full text search doc.
@@ -5,7 +5,7 @@ Application 5 - Searchable content
This example demonstrates how to extend the library's application recorder classes
to support full text search queries in an event-sourced application with both
-`PostgreSQL <https://www.postgresql.org/docs/current/textsearch.html_>`_ and
+`PostgreSQL <https://www.postgresql.org/docs/current/textsearch.html>`_ and
`SQLite <https://www.sqlite.org/fts5.html>`_.
Application
