Update ERC-3770: Update erc-3770.md - fixed the examples image link

[sandmanarc]

The examples image link was pointing to "../assets/eip-3770/examples.png" instead of "../assets/erc-3770/examples.png".

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[eip-review-bot]

File ERCS/erc-3770.md

Requires 1 more reviewers from @lukasschor, @pedrouid, @rmeissner

[github-actions[bot]]

The commit 99f28c3b2c6329200ce2eead24227b7b45a4090f (as a parent of 8fda6953b2284243ac6640165c5a41b2ddae3945) contains errors. Please inspect the Run Summary for details.

[SamWilsn]

Because of a quirk of our rendering system, using ../assets/eip-xxxx/... is correct.