Add Sloth (#1208)

Co-authored-by: 小弟调调 <398188662@qq.com>

Author: Raymond Adams

README.md

@@ -1064,6 +1064,7 @@ Any comments, suggestions? [Let us know!](https://github.com/jaywcjlove/awesome-
 * [Paragon NTFS](https://www.paragon-software.com/home/ntfs-mac/) - Read/write access to NTFS in macOS Sierra.
 * [RemoveX](https://removex.io) - RemoveX is an uninstaller tool for Mac computer. RemoveX has a beautifully UI using native design for MacOS. Save hours of time and remove your app in seconds. Do not make you think. ![Freeware][Freeware Icon]
 * [Sensei](https://sensei.app/) - Sensei is a multi-tool for Mac performance, with features spanning across both hardware and software.
+* [Sloth](https://sveinbjorn.org/sloth/) - Shows all open files, directories, sockets, pipes and devices in use by all running processes. [![Open-Source Software][OSS Icon]](https://github.com/sveinbjornt/Sloth/) ![Freeware][Freeware Icon]
 * [SwiftQuit](https://github.com/onebadidea/swiftquit/) - Enables automatic quitting of macOS apps when closing their windows. [![Open-Source Software][OSS Icon]](https://github.com/onebadidea/swiftquit) ![Freeware][Freeware Icon]
 * [Core Tunnel](https://codinn.com/tunnel/) - Application for managing SSH connections. [![App Store][app-store Icon]](https://apps.apple.com/us/app/core-tunnel/id1354318707)
 * [TG Pro](https://www.tunabellysoftware.com/tgpro/) - Temperature monitoring, fan control & hardware diagnostics to help keep your Mac cool and healthy.