bpo-43446: Fix markup in sqlite3 footnote (GH-24806)

Author: kamilturek

Doc/library/sqlite3.rst

@@ -1090,5 +1090,5 @@ committed:
 .. [#f1] The sqlite3 module is not built with loadable extension support by
    default, because some platforms (notably Mac OS X) have SQLite
    libraries which are compiled without this feature. To get loadable
-   extension support, you must pass --enable-loadable-sqlite-extensions to
+   extension support, you must pass ``--enable-loadable-sqlite-extensions`` to
    configure.