Add comment on what the cypress test is testing

Author: Nick Canzoneri

e2e/cypress/integration/tests/actions.spec.js

@@ -8,6 +8,8 @@ context('Actions', () => {
   it('All + elements are clickable', () => {
     cy.get('.step-up').click( { multiple: true } )
 
+    // This gets the "first" input from the sidebar. From clicking step up,
+    // the number of days to project should increase from default 60 to 70.
     cy.get('input.st-al')
       .should('has.value', '70')
   })