add selector and comments

Author: tanyatrayanava

tests/e2e/pageObjects/my-redis-databases-page.ts

@@ -23,6 +23,7 @@ export class MyRedisDatabasePage {
     editAliasButton = Selector('[data-testid=edit-alias-btn]');
     applyButton = Selector('[data-testid=apply-btn]');
     submitChangesButton = Selector('[data-testid=btn-submit]');
+    promoButton = Selector('[data-testid=promo-btn]');
     //CHECKBOXES
     selectAllCheckbox = Selector('[data-test-subj=checkboxSelectAll]');
     //ICONS

tests/e2e/tests/critical-path/database/autoupdate-of-json.e2e.ts

@@ -36,14 +36,16 @@ fixture `Automatically update information`
 test
     .meta({ rte: rte.standalone, env: env.desktop })
     ('Verify that user has the ability to update "Create free database" button without changing the app', async t => {
+        //Create new file paths due to cacheability
         const buildFilePathNew = editJsonFile(buildPath);
         const createRedisFilePathNew = editJsonFile(createRedisPath);
-        //Check the promo button
+        //Check the promo button after the opening of app
         await t.expect(myRedisDatabasePage.promoButton.textContent).notContains(cloudValueForEdit, 'Promo button text is updated');
-        //Check the json files are automatically updated
+        //Get the values from build.json and create-redis.json files
         const timestampAfterUpdate = await buildFilePathNew.get('timestamp');
         const cloudTitle = await createRedisFilePathNew.get('cloud.title');
         const cloudDescription = await createRedisFilePathNew.get('cloud.description');
+        //Check the json files are automatically updated
         await t.expect(timestampAfterUpdate).notEql(timestampForEdit, 'The timestamp in the build.json file is automatically updated');
         await t.expect(cloudTitle).notEql(cloudValueForEdit, 'The cloud title in the create-redis.json file is automatically updated');
         await t.expect(cloudDescription).notEql(cloudValueForEdit, 'The cloud description in the create-redis.json file is automatically updated');