add callouts for important contracts

docs/cadence_migration_guide/ft-guide.mdx

@@ -60,6 +60,19 @@ for all of the important contracts related to fungible tokens:
 See the other guides in this section of the docs for the import
 addresses of other important contracts in the emulator.
 
+As for contracts that are important for NFT developers but aren't "core contracts",
+here is information about where to find the Cadence 1.0 Versions of Each:
+
+**USDC:** The USDC contract is still being updated for Cadence 1.0 and is currently not available.
+
+**Account Linking and Hybrid Custody:** The account linking and hybrid custody contracts
+are still being updated for Cadence 1.0 and are currently not available.
+
+For any other contracts, search for their github repo and there will likely be
+a PR or feature branch with the Cadence 1.0 changes. If there isn't, please
+create an issue in the repo or reach out to that team directly via their support
+or Discord channel to ask them about their plans to update their contracts.
+
 # Migration Guide
 
 Please see the [NFT Cadence 1.0 migration guide](./nft-guide). While

docs/cadence_migration_guide/nft-guide.mdx

@@ -63,6 +63,25 @@ for all of the important contracts related to non-fungible tokens:
 See the other guides in this section of the docs for the import
 addresses of other important contracts in the emulator.
 
+As for contracts that are important for NFT developers but aren't "core contracts",
+here is information about where to find the Cadence 1.0 Versions of Each:
+
+**NFT Catalog:** See [the `feature/cadence-1.0` branch of the NFT Catalog Repo](https://github.com/onflow/nft-catalog/tree/feature/cadence-1.0/cadence/contracts)
+for the updated versions of NFT Catalog contracts.
+
+**NFT Storefront:** See [the `cadence-1.0` branch in the NFT Storefront Repo](https://github.com/onflow/nft-storefront/tree/cadence-1.0/contracts)
+for the updated versions of the `NFTStorefront` and `NFTStorefrontV2` contracts.
+
+**USDC:** The USDC contract is still being updated for Cadence 1.0 and is currently not available.
+
+**Account Linking and Hybrid Custody:** The account linking and hybrid custody contracts
+are still being updated for Cadence 1.0 and are currently not available.
+
+For any other contracts, search for their github repo and there will likely be
+a PR or feature branch with the Cadence 1.0 changes. If there isn't, please
+create an issue in the repo or reach out to that team directly via their support
+or Discord channel to ask them about their plans to update their contracts.
+
 ## A note for newcomers
 
 This guide is primarily for developers who have existing contracts