docs: add pactus network in README

Author: ja7ad

README.md

@@ -21,6 +21,7 @@ A network agnostic DHT crawler and monitor. The crawler connects to [DHT](https:
 - [Celestia](https://celestia.org/) - [_Mainnet_](https://blog.celestia.org/celestia-mainnet-is-live/)
 - [Celestia](https://celestia.org/) - [_Arabica_](https://github.com/celestiaorg/celestia-node/blob/9c0a5fb0626ada6e6cdb8bcd816d01a3aa5043ad/nodebuilder/p2p/bootstrap.go#L40)
 - [Celestia](https://celestia.org/) - [_Mocha_](https://docs.celestia.org/nodes/mocha-testnet)
+- [Pactus](https://pactus.org)
 
 _The crawler was:_