Add Folders File Manager (#1193)

Author: Conxt

README.md

@@ -884,6 +884,7 @@ Any comments, suggestions? [Let us know!](https://github.com/jaywcjlove/awesome-
 * [BetterZip](https://macitbetter.com/) - Archive tool supports ZIP, TAR, TGZ, TBZ, TXZ (new), 7-ZIP, RAR.
 * [eZip](http://ezip.awehunt.com) - An easy to use, feature-rich archiver for macOS. Supports popular formats such as RAR, ZIP, 7Z, BZ2, GZ etc. Works great with Mojave dark-mode and QuickLook. ![Freeware][Freeware Icon]
 * [Fileside](https://www.fileside.app) - A modern, tiling file manager with unlimited panes.
+* [Folders File Manager](https://foldersapp.dev) - A file manager with an expandable folder tree, similar to that of Windows Explorer.
 * [Hazel](https://www.noodlesoft.com) - Automated file organization for your Mac. Responsibly and beautifully designed.
 * [Keka](https://www.keka.io) - File archiver for macOS. Compression: 7Z, ZIP, TAR, GZIP, BZIP2, XZ LZIP, DMG, ISO. Extraction: 7Z, ZIP, RAR, TAR, GZIP, BZIP2, XZ, LZIP, DMG, ISO, LZMA, EXE, CAB, WIM, PAX, JAR, APK, APPX, CPGZ, CPIO. ![Freeware][Freeware Icon] [![App Store][app-store Icon]](https://itunes.apple.com/app/keka/id470158793)
 * [muCommander](http://www.mucommander.com) - Lightweight file manager with a dual-pane interface. [![Open-Source Software][OSS Icon]](https://github.com/mucommander/mucommander) ![Freeware][Freeware Icon]