Issues with JSON schema docs

[crandmck]

The section https://cawg.io/identity/1.1/#_verify_the_credentials_schema has these links:

• https://cawg.io/identity/1.1/ica/schema/vc1.1/
• https://cawg.io/identity/1.1/ica/schema/vc2.0/

The first link resolves with a Chrome browser, but not with FireFox or Safari.

The second link does not resolve at all.