docs: added more description comments in code with links

tests/user/create-user/create-user.artillery.yaml

@@ -1,5 +1,6 @@
 # Load testing with Artillery.
 # Can also be good for seeding database with lots of dummy data.
+# https://github.com/Sairyss/backend-best-practices#load-testing
 # https://www.npmjs.com/package/artillery
 # https://www.npmjs.com/package/artillery-plugin-faker
 config:

tests/user/create-user/create-user.e2e-spec.ts

@@ -8,7 +8,10 @@ import { getTestServer, TestServer } from '../../jestSetupAfterEnv';
 
 const feature = loadFeature('tests/user/create-user/create-user.feature');
 
-// e2e test implementing a Gherkin feature file
+/**
+ * e2e test implementing a Gherkin feature file
+ * https://github.com/Sairyss/backend-best-practices#testing
+ */
 
 defineFeature(feature, test => {
   let testServer: TestServer;