Update CHANGELOG.md [ci skip] (#21)

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Author: 47erbot

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## [v0.6.3](https://github.com/scala-exercises/sbt-exercise/tree/v0.6.3) (2020-06-29)
+
+[Full Changelog](https://github.com/scala-exercises/sbt-exercise/compare/v0.6.2...v0.6.3)
+
+**Merged pull requests:**
+
+- Updates runtime [\#20](https://github.com/scala-exercises/sbt-exercise/pull/20) ([juanpedromoreno](https://github.com/juanpedromoreno))
+
 ## [v0.6.2](https://github.com/scala-exercises/sbt-exercise/tree/v0.6.2) (2020-06-29)
 
 [Full Changelog](https://github.com/scala-exercises/sbt-exercise/compare/v0.6.1...v0.6.2)