Changelog entry.

LucianoPAlmeida · bobgodwinx · commit 55f7676ebf79 · 2018-12-05T19:35:23.000+01:00
diff --git a/Changelog.md b/Changelog.md
@@ -5,7 +5,7 @@ Changelog
 Current master
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-- Nothing yet!
+- Adding syntax sugar `execute()` method on `Action` when `Input` is `Void`. [#171](https://github.com/RxSwiftCommunity/Action/pull/171)
 
 3.9.1
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