Update changelog for v0.8.0

Author: jbowes

CHANGELOG.md

@@ -7,6 +7,20 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+## [0.8.0] - 2020-09-28
+
+### Added
+
+- Support ctrl-h for backspace
+- Allow hiding entered data after submit
+- Allow masking input with an empty rune to hide input length
+
+### Fixed
+
+- Fix echo of cursor after input is finished
+- Better support for keycodes on Windows
+
+
 ## [0.7.0] - 2020-01-11
 
 ### Added