fix changelog entry ID

Author: keflavich

CHANGES.rst

@@ -103,7 +103,7 @@ jplspec
 
 - Refactored to use linelists.core.  Added new ``get_molecule`` method [#3456]
 - Moved to linelists/.  astroquery.jplspec is now deprecated in favor of astroquery.linelists.jplspec [#3455]
-- Fallback added to go to the wayback machine [#3510]
+- Fallback added to go to the wayback machine [#3547]
 
 
 linelists.jplspec