Explicit default values of PUBLIC_

example.env

@@ -31,6 +31,9 @@ JWT_SECRET="SECRET"
 # OPENID_CONNECT_CLIENT_ID="OAUTH2_CLIENT_ID"
 # OPENID_CONNECT_CLIENT_SECRET="OAUTH2_CLIENT_SECRET"
 # OPENID_CONNECT_ISSUER_URL="https://IDENTITY_PROVIDER/PATH/TO/REALM"
+OPENID_CONNECT_CLIENT_ID=
+OPENID_CONNECT_CLIENT_SECRET=
+OPENID_CONNECT_ISSUER_URL=
 
 # Are advanced & experimental features enabled?
 PUBLIC_ADVANCED=false