add CITA into Cryptocurrencies list

CITA is a fast and scalable blockchain kernel for enterprises. CITA supports both native contract and EVM contract, by which enterprise users can build their own blockchain applications. CITA has a unique architecture which enables enterprise users to release all their computing resources.

README.md

@@ -141,6 +141,7 @@ See also [Rust — Production](https://www.rust-lang.org/production) organizatio
 * [Bitcoin Satoshi's Vision](https://github.com/brentongunning/rust-sv) — A Rust library for working with Bitcoin SV .
 * [cardano-cli](https://github.com/input-output-hk/cardano-cli) — Cardano Command Line Interface (CLI)
 * [ChainX](https://github.com/chainx-org/ChainX) — Fully Decentralized Interchain Crypto Asset Management on Polkadot.
+* [CITA](https://github.com/citahub/cita) — A high performance blockchain kernel for enterprise users.
 * [coinbase-pro-rs](https://github.com/inv2004/coinbase-pro-rs) — Coinbase pro client in Rust, supports sync/async/websocket [<img src="https://api.travis-ci.org/inv2004/coinbase-pro-rs.svg?branch=master">](https://travis-ci.org/inv2004/coinbase-pro-rs)
 * [ethaddrgen](https://github.com/Limeth/ethaddrgen) — Custom Ethereum vanity address generator made in Rust [<img src="https://api.travis-ci.org/Limeth/ethaddrgen.svg?branch=master">](https://travis-ci.org/Limeth/ethaddrgen)
 * [Grin](https://github.com/mimblewimble/grin/) — Evolution of the MimbleWimble protocol