Updated changelog

Author: TimOliver

CHANGELOG.md

@@ -1,12 +1,13 @@
 x.y.z Release Notes (yyyy-MM-dd)
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-1.0.0 Release Notes (yyyy-MM-dd)
+1.0.0 Release Notes (2019-09-23)
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 ### Enhancements
 
 * Added dark mode support for iOS 13 and up.
+* Added optional 'reversible' mode for specific segments.
 
 0.0.1 Release Notes (2019-09-15)
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