Update changelog for alpha 6 (#12662)

* Update changelog for alpha 6 again

CHANGELOG.md

@@ -9,22 +9,14 @@
 ## v2.0.0-alpha.6 [2019-03-15]
 
 ### Release Notes
-We have updated the way we do predefined dashboards to [include Templates](https://github.com/influxdata/influxdb/pull/12532) in this release which will cause existing Organizations to not have a System dashboard created when they build a new Telegraf configuration. You will need to remove your bolt db and go through onboarding again. This will **delete your tokens, dashboards, tasks, and other non-time series data**, but will not impact you existing time series data. You will need to provide a new token to anything writing data into the system.
+We have updated the way we do predefined dashboards to [include Templates](https://github.com/influxdata/influxdb/pull/12532) in this release which will cause existing Organizations to not have a System dashboard created when they build a new Telegraf configuration. In order to get this functionality, remove your existing data and start from scratch. 
 
-On most `linux` systems:
+**NOTE: This will remove all data from your InfluxDB v2.0 instance including timeseries data.**
 
-```sh
-# Replace <username> with your actual username.
-
-$ rm /home/<username>/.influxdbv2/influxd.bolt
-```
-
-On `macOS`:
+On most `linux` systems including `macOS`:
 
 ```sh
-# Replace <username> with your actual username.
-
-$ rm /Users/<username>/.influxdbv2/influxd.bolt
+$ rm -r ~/.influxdbv2
 ```
 
 Once completed, `v2.0.0-alpha.6` can be started.