Add Marta (#1070)

Author: nagyfrankie

README.md

@@ -841,6 +841,7 @@ Any comments, suggestions? [Let us know!](https://github.com/jaywcjlove/awesome-
 * [PDF Archiver](https://github.com/JulianKahnert/PDF-Archiver) - Nice tool for tagging and archiving tasks. [![Open-Source Software][OSS Icon]](https://github.com/JulianKahnert/PDF-Archiver) [![App Store][app-store Icon]](https://itunes.apple.com/app/pdf-archivar/id1352719750)
 * [The Unarchiver](https://theunarchiver.com/) - Unarchive many different kinds of archive files. [![Open-Source Software][OSS Icon]](https://bitbucket.org/kosovan/theunarchiver) ![Freeware][Freeware Icon]
 * [Unarchive One](https://cleanerone.trendmicro.com/unarchiver-one/?utm_source=github&utm_medium=referral&utm_campaign=githubproject) - Quickly decompress multiple different types of compressed files/compressed files to various scene compression formats. ![Freeware][Freeware Icon] [![App Store][app-store Icon]](https://apps.apple.com/app/apple-store/id1127253508?pt=444218&ct=GitHub&mt=8)
+* [Marta](https://marta.sh) - File Manager for macOS written entirely in Swift ![Freeware][Freeware Icon]
 
 #### General Tools