Added comments from type schema to types docs

[NullSoldier]

What changed? Why?

These doc comments were in the latest docs, but this type was copied and didn't have the comment strings. Porting these to the other copy of this doc.

Notes to reviewers

How has it been tested?

1. npx mint dev
2. Open http://localhost:3000/onchainkit/identity/types#getattestationsoptions
3. Open http://localhost:3000/onchainkit/latest/utilities/identity/get-attestations
4. See that the two versions of this are not the same

[cb-heimdall]

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