Update README.md

README.md

@@ -1,7 +1,5 @@
-# disk-health-checker
+# cassandra-keyspaces-checker
 
-Simple tool to run smartctl and print InfluxDB compatible output.
+Simple tool to read metrics for every keyspace and table on a Cassandra, through Jolokia, then output InfluxDB line protocol.
 
-This tool is meant to be used with Telegraf's `inputs.exec` plugin.
-
-The tool needs to have setuid to be able to run `smartctl`.
+This tool is meant to be used with Telegraf's `inputs.exec` plugin.