Added the Authentication section to the "APIProtocol" and "Client" extensions on the DocC documentation catalog in the library target.

Sources/DiscogsService/Catalogs/DiscogsService.docc/Extensions/APIProtocol.md

@@ -7,6 +7,15 @@
 - ``APIProtocol/getService(_:)``
 - ``APIProtocol/getService(headers:)``
 
+### Authentication endpoints
+
+- ``APIProtocol/getRequestToken(_:)``
+- ``APIProtocol/getRequestToken(headers:)``
+- ``APIProtocol/postAccessToken(_:)``
+- ``APIProtocol/postAccessToken(headers:)``
+- ``APIProtocol/getUserIdentity(_:)``
+- ``APIProtocol/getUserIdentity(headers:)``
+
 ### Database endpoints
 
 - ``APIProtocol/searchDatabase(_:)``

Sources/DiscogsService/Catalogs/DiscogsService.docc/Extensions/Client.md

@@ -10,6 +10,12 @@
 
 - ``Client/getService(_:)``
 
+### Authentication endpoints
+
+- ``Client/getRequestToken(_:)``
+- ``Client/postAccessToken(_:)``
+- ``Client/getUserIdentity(_:)``
+
 ### Database endpoints
 
 - ``Client/searchDatabase(_:)``