remove extra new line

Signed-off-by: Fernando Crespo Gravalos <fcrespo@fastly.com>

charts/cluster-autoscaler/README.md.gotmpl

@@ -187,7 +187,6 @@ Prefixes will be rendered using `tpl` function so you can use any value of your
 
 In the event you want to explicitly specify MIGs instead of using auto-discovery, set members of the `autoscalingGroups` array directly - e.g.
 
-
 ```
 # where 'n' is the index, starting at 0
 --set autoscalingGroups[n].name=https://content.googleapis.com/compute/v1/projects/$PROJECTID/zones/$ZONENAME/instanceGroups/$FULL-MIG-NAME,autoscalingGroups[n].maxSize=$MAXSIZE,autoscalingGroups[n].minSize=$MINSIZE