Typo in IERC721Receiver Docs

Hello,

This link contains a typo under the description of onERC721Received in the IERC721Receiver section.

Instead of:

The selector can be obtained in Solidity with IERC721.onERC721Received.selector

It should read:

The selector can be obtained in Solidity with IERC721Receiver.onERC721Received.selector

Thank you in advance!

Please report this kind of thing as an issue. Pull requests are also welcome, although I understand it's not so clear what file to change.