Update changelog to reference OIDC discovery specs.

Author: n2ygk

CHANGELOG.md

@@ -19,7 +19,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [2.0.0] unreleased
 
 ### Added
-* #1106 Add "scopes_supported" to the [ConnectDiscoveryInfoView](https://django-oauth-toolkit.readthedocs.io/en/latest/oidc.html#connectdiscoveryinfoview)
+* #1106 Add "scopes_supported" to the [ConnectDiscoveryInfoView](https://django-oauth-toolkit.readthedocs.io/en/latest/oidc.html#connectdiscoveryinfoview).
+  This completes the view to provide all the REQUIRED and RECOMMENDED [OpenID Provider Metadata](https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderMetadata).
 
 ### Changed
 * #1093 (**Breaking**) Changed to implement [hashed](https://docs.djangoproject.com/en/stable/topics/auth/passwords/)