Add changelog entry.

CHANGELOG.md

@@ -86,10 +86,11 @@ While some features like the clipboard, menus or file dialogs are not yet availa
 - Reduce the flashing in ext_event and identity examples. ([#782] by [@futurepaul])
 - Added example and usage hints to `Env`. ([#796] by [@finnerale])
 - Added documentation about the usage of bloom filters. ([#818] by [@xStrom])
-- Added Book chapters about `Painter` and `Controller`. ([#832] by [@cmyr])
+- Added book chapters about `Painter` and `Controller`. ([#832] by [@cmyr])
 - Added hot glow option to multiwin example. ([#845] by [@xStrom])
 - Added new example for blocking functions. ([#840] by [@mastfissh])
 - Added a changelog containing development since the 0.5 release. ([#889] by [@finnerale])
+- Added a book chapter about resolution independence. ([#913] by [@xStrom])
 
 ### Maintenance
 
@@ -155,6 +156,7 @@ While some features like the clipboard, menus or file dialogs are not yet availa
 [#898]: https://github.com/xi-editor/druid/pull/898
 [#900]: https://github.com/xi-editor/druid/pull/900
 [#909]: https://github.com/xi-editor/druid/pull/909
+[#913]: https://github.com/xi-editor/druid/pull/913
 
 ## [0.5.0] - 2020-04-01