Add comments for resource_class and resource_loader

Author: mcelicalderon

app/controllers/graphql_devise/concerns/additional_controller_methods.rb

@@ -26,6 +26,7 @@ def authenticate_model(models)
       end
 
       def resource_class(resource = nil)
+        # Return the resource class instead of looking for a Devise mapping if resource is already a resource class
         return resource if resource.respond_to?(:find_by)
 
         super

lib/graphql_devise/resource_loader.rb

@@ -15,6 +15,7 @@ def call(query, mutation)
 
       model = @resource.is_a?(String) ? @resource.constantize : @resource
 
+      # Necesary when mounting a resource via route file as Devise forces the reloading of routes
       return clean_options if GraphqlDevise.resource_mounted?(model) && @routing
 
       validate_options!(clean_options)