Update README.md

s/DigitalIdentity/DigitalCredential

Author: timcappalli

README.md

@@ -6,7 +6,7 @@ This incubation is attempting to specify an API for user agents that would media
 
 These identities can range from government-issued documents, such as driver's licenses and passports, to start with, to other credential types, potentially in the future.
 
-[Digital Credentials](https://wicg.github.io/digital-identities/) builds upon [Credential Management](https://www.w3.org/TR/credential-management-1/) to enable the secure and private exchange of digital identity information. It facilitates authenticated interactions by representing digital credentials through the `DigitalIdentity` interface, which embodies verifiable claims about an individual's identity.
+[Digital Credentials](https://wicg.github.io/digital-identities/) builds upon [Credential Management](https://www.w3.org/TR/credential-management-1/) to enable the secure and private exchange of digital identity information. It facilitates authenticated interactions by representing digital credentials through the `DigitalCredential` interface, which embodies verifiable claims about an individual's identity.
 
 ## Scope