Update README.md

Author: jessiemongeon1

motoko/backend_only/README.md

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 This backend only project demonstrates how to write a simple smart contract for ICP.
 
-This application's logic is written in [Motoko](https://internetcomputer.org/docs/motoko/home), a programming language designed specifically for developing canisters on ICP.
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 ## Deploying from ICP Ninja
 
 When viewing this project in ICP Ninja, you can deploy it directly to the mainnet for free by clicking "Deploy" in the upper right corner. Open this project in ICP Ninja: