Add new entry: Subgraph OS

README.md

@@ -194,6 +194,7 @@ These Firefox extensions can help prevent connections to Google domains and also
   - [/e/](https://e.foundation/) - **9-eyes** - A new open-source, privacy-focused operating system for Android devices. Looks very promising (thanks u/itsec_ho). **Note: u/steamport shared [this link](https://ewwlo.xyz/evil.html).
 - Chrome OS
   - [Qubes OS](https://www.qubes-os.org/) - "A reasonably secure operating system", at least according to their website. Edward Snowden recommends it.
+  - [Subgraph OS](https://subgraph.com/index.en.html) - A desktop computing and communications platform that is designed to be resistant to network-borne exploit and malware attacks.
   - [Tails](https://tails.boum.org/) - For the uber-paranoid. Runs live and the entire OS is routed through Tor right from boot. Built on Debian.
   - [Knoppix](http://www.knopper.net/knoppix/index-en.html) - Another Live OS, runs from CD/DVD/USB. Can also be installed if desired.
   - [Parrot OS](https://parrotsec.org/) - Debian-based and privacy focused. Fully sandboxed. (thanks u/Safe_Airport)