Add Tor (sindresorhus#3081)

Author: Polycarbohydrate

readme.md

@@ -758,6 +758,7 @@
 - [Algorand](https://github.com/aorumbayev/awesome-algorand#readme) - An open-source, proof of stake blockchain and smart contract computing platform.
 - [ZeroNet](https://github.com/zolagonano/awesome-zeronet#readme) - A decentralized web-like network of peer-to-peer users.
 - [Cosmos SDK](https://github.com/cosmos/awesome-cosmos#readme) - Modular framework for building app-specific blockchains in Go.
+- [Tor](https://github.com/polycarbohydrate/awesome-tor#readme) - A free overlay network for enabling anonymous communication.
 
 ## Health and Social Science