[DOCS] Superchain Interop Explainer 404

[parseb]

Brief Description of the Docs Request

Last link on deploy-superchain-erc20 404s. The Superchain Interop Explainer is missing.

Description of the Documentation You'd Like

Page is missing or the link is bad.

Links to Related Pages

• https://docs.optimism.io/stack/interop/assets/deploy-superchain-erc20 (source)
• https://docs.optimism.io/stack/interop/assets/explainer (404)

[krofax]

Issue fixed in this PR