Update README.md

noted creative comments with attribution license

Author: akollegger

README.md

@@ -59,3 +59,5 @@ are saved under `/media` and exported SVG images in `/src/assets/images`.
 ![Neo4j](https://avatars.githubusercontent.com/u/201120?s=200&v=4) 
 
 Thanks to [Neo4j](https://neo4j.com) for sponsoring this work.
+
+<p xmlns:cc="http://creativecommons.org/ns#" xmlns:dct="http://purl.org/dc/terms/"><a property="dct:title" rel="cc:attributionURL" href="https://graphr.ag">GraphRAG Pattern Catalog</a> by <a rel="cc:attributionURL dct:creator" property="cc:attributionName" href="https://neo4j.com">Neo4j, Inc</a> is licensed under <a href="https://creativecommons.org/licenses/by/4.0/?ref=chooser-v1" target="_blank" rel="license noopener noreferrer" style="display:inline-block;">CC BY 4.0<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/cc.svg?ref=chooser-v1" alt=""><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/by.svg?ref=chooser-v1" alt=""></a></p>