Simplify contact section

README.md

@@ -154,8 +154,7 @@ matching the accompanying code.
 
 ## Contact
 
-Found a problem with the data — a corrupt shard, a mislabeled map, a wrong `id`?
-Please open a discussion on this repository, or write to
+If you find any issue with the dataset, please contact the author at
 `hytian2` `[at]` `gmail` `[dot]` `com`.