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## Send Hash
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In this exercise, you will register the hash of a document on the blockchain.
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### Instructions
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Write a node script that provides a function `sendHash()` that:
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- creates a hash `sha256` of a string provided as parameter
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- connects to a local node (`http://localhost:8545`)
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- sends a transaction to an address with the hash of the document in the `data` field
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```js
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function sendHash(text) {
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//...
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}
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module.exports = sendHash
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```
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### Notions
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- [hardhat](https://hardhat.org)
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- [ganache](https://www.trufflesuite.com/ganache)
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- [ethers](https://docs.ethers.io/)
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- [web3](https://web3js.readthedocs.io/)
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