Add Sleepr (#1326)

README.md

@@ -1164,6 +1164,7 @@ 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.
 * [stats](https://github.com/exelban/stats) - free Mac system monitor for the menubar. [![Open-Source Software][OSS Icon]]
 * [Sensei](https://sensei.app/) - Sensei is a multi-tool for Mac performance, with features spanning across both hardware and software.
+* [Sleepr](https://sleepr.app/) - Sleepr brings back sleep timer on macOS. [![App Store][app-store Icon]](https://apps.apple.com/us/app/sleepr-app/id6465683427)
 * [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)