Update README.md

Author: cgnorthcutt

README.md

@@ -1,5 +1,7 @@
 # Label Errors in Benchmark ML Test Sets
 
-The cleaned and corrected test sets for all ten ML benchmark test sets, along with the indices for all label errors at https://labelerrors.com will be made available here by the end of this week (April 5).
+**Release of corrected test sets is delayed due to media coverage. We will release in 2 weeks. Thanks for your patience.*
+
+The cleaned and corrected test sets for all ten ML benchmark test sets, along with the indices for all label errors at https://labelerrors.com will be made available here by the end of this week (April 20).