renamed "Removed" section to "Deprecated"

Author: rpkyle

CHANGELOG.md

@@ -14,7 +14,7 @@ All notable changes to this project will be documented in this file.
 - Rename `DASH_HOST` to `HOST` and `DASH_PORT` to `PORT` [#167](https://github.com/plotly/dashR/pull/167)
 - Automatically set routes and requests pathname prefixes if `DASH_APP_NAME` environment variable has been set [#165](https://github.com/plotly/dashR/pull/165)
 
-### Removed
+### Deprecated
 - Application titles can no longer be set using `name` parameter, which is now deprecated with a warning, for parity with Dash for Python [#168](https://github.com/plotly/dashR/pull/168)