adding comment on spec

spec/queries/count_classifications_spec.rb

@@ -169,6 +169,7 @@
               it 'adds the most recent period to the most recently pulled period counts' do
                 create(:classification_with_diff_workflow, classification_id: 1000, event_time: Date.new(2022, 1, 2))
                 expect(counts.length).to eq(1)
+                # the 2 classifications counted is the one created in L170 as well as diff_workflow_event classification.
                 expect(counts[0].count).to eq(2)
                 expect(counts[0].period).to eq(Date.today.at_beginning_of_year)
               end