README.md in sensu-plugins-redis-4.0.0 vs README.md in sensu-plugins-redis-4.1.0

@@ -16,9 +16,10 @@
  * bin/check-redis-memory-percentage.rb
  * bin/check-redis-ping.rb
  * bin/check-redis-slave-status.rb
  * bin/check-redis-connections-available.rb
  * bin/metrics-redis-graphite.rb
+ * bin/metrics-redis-keys.rb
  * bin/metrics-redis-llen.rb
 
 ## Usage
 
 ## Installation