Update README.md

Author: craigmcnamara

README.md

@@ -1,4 +1,8 @@
-# redis-elasticache
+# Deprecated
+
+This is no longer needed: https://github.com/redis/redis-rb/issues/550#issuecomment-703248932
+
+## redis-elasticache
 
 Adds support for Elasticache failover to the Ruby driver of the redis-rb gem. Elasticache replication groups can transparently promote a new node to master, but TCP connections are persistent. This patch makes READONLY error messages from Redis get handled like a connection error instead of a command error so redis-rb will self heal the connection and run the command against the new master node.