Marathon: remove additional line from description
@@ -12,8 +12,6 @@ Metadata associated with the Marathon plugin for collectd can be found [here](ht
### DESCRIPTION
-This is the SignalFx Marathon plugin. Follow these instructions to install the Marathon plugin for collectd.
-
The [collectd-marathon](https://github.com/signalfx/collectd-marathon) plugin collects metrics about Marathon applications and tasks.
#### Features
