Update CITATION.CFF title

Author: J535D165

CITATION.cff

@@ -4,7 +4,7 @@ authors:
 - family-names: "De Bruin"
   given-names: "Jonathan"
   orcid: "https://orcid.org/0000-0002-4297-0502"
-title: "py3data - A Python interface to the re3data.org database"
+title: "py3data - A flexible and lightweight Python interface to the re3data.org database"
 version: 0.3
 date-released: 2023-07-29
 url: "https://github.com/J535D165/py3data"