fixed typo in link to zelph.org

README.md

@@ -18,7 +18,7 @@ size_categories:
 
 # zelph Binaries Dataset
 
-This dataset provides pre-compiled binary files (.bin) for use with [zelph](https://github.com/acrio/zelph), a sophisticated semantic network system.
+This dataset provides pre-compiled binary files (.bin) for use with [zelph](https://zelph.org), a sophisticated semantic network system.
 These binaries are derived from large knowledge bases like Wikidata, optimized for fast loading and efficient querying.
 
 ## Dataset Description