Add macOS Open Source Apps (#1260)

readme.md

@@ -91,6 +91,7 @@
 	- [Command-Line](https://github.com/herrbischoff/awesome-macos-command-line#readme)
 	- [Screensavers](https://github.com/agarrharr/awesome-macos-screensavers#readme)
 	- [Apps](https://github.com/jaywcjlove/awesome-mac#readme)
+	- [Open Source Apps](https://github.com/serhii-londar/open-source-mac-os-apps#readme)
 - [watchOS](https://github.com/yenchenlin/awesome-watchos#readme) - Operating system for the Apple Watch.
 - [JVM](https://github.com/deephacks/awesome-jvm#readme)
 - [Salesforce](https://github.com/mailtoharshit/awesome-salesforce#readme)