If you want to add liquidity to the Morpher Uniswap pool it's really easy.
First of all go here: https://app.uniswap.org/#/add/0x6369c3dadfc00054a42ba8b2c09c48131dd4aa38/ETH
This link will take you to the "pool" site on Uniswap for MPH.
As you enter the amount of tokens that you want to add, it will automatically fill the appropriate ETH amount.
You will then be instructed to connect your wallet to Uniswap, and after signing the transaction - you add liquidity.
There is also a very comprehensive guide on this by Coinmarket cap: https://coinmarketcap.com/headlines/news/uniswap-liquidity-pool/