[fix]; missing comma

Author: MattDodsonEnglish

src/data/markdown/translated-guides/en/02 Using k6/14 Scenarios/02 Advanced Examples.md

@@ -21,7 +21,7 @@ This script has two scenarios, `contacts` and `news`, which run in sequence:
 1. At the beginning of the test, k6 starts the `contacts` scenario. 50 VUs try to run as many iterations as possible for 30 seconds.
 1. After 30 seconds, k6 starts the `news` scenario. 50 VUs each try to run 100 iterations in one minute.
 
-Along with `startTime` `duration`, and `maxDuration`, note the different test logic for each scenario.
+Along with `startTime`, `duration`, and `maxDuration`, note the different test logic for each scenario.
 
 <CodeGroup labels={[ "multiple-scenarios.js" ]} lineNumbers={[true]}>