<a href="https://solidity.readthedocs.io/en/v0.6.2/contracts.html#receive-ether-function" title="the link to documentation" target="_blank">
<a href="https://solidity.readthedocs.io/en/v0.6.2/contracts.html#receive-ether-function" title="check out docs for using 'receive'/'fallback'" target="_blank">