I wrote an article about the Dexter exchange for Tezos on Medium:

https://medium.com/crypto-space/dexter-decentralized-exchange-and-liquidity-pool-for-tezos-xtz-tzbtc-and-xtz-usdtz-4e0c251887c8?source=friends_link&sk=382483b1fadc164fddf4cea54074dff3

It has real data about making exchanges and adding liquidity to the pool.

Thanks!