Update Changelog for beta 1
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CHANGELOG.md
CHANGELOG.md
Change Log
==========
+## Version 1.0.0-beta.1
+
+_2020-09-11_
+
+* Add convenience `onOutput` transformer for `AnyWorkflow` (#59)
+* Remove the APIs that were deprecated in the Workflow 1.0.0 alpha (#62, #63, #64, #65, #66). See the [migration guide](/MigrationGuide_v1.0.md) for more info.
+
## Version 1.0.0-alpha.6
-_2020-09-22_
+_2020-09-02_
* Lowering RxSwift version requirement from 5.1.1 to 4.4.0 (#60)

Update Changelog for beta 1