How to update Zoom Web-SDK?

I join zoom meetings through zoom web via either firefox or chorme. At the starting of each meeting, it shows to update WebSDK to latest version. But when i went to the website regarding that (https://8xmdmkir8ctlkfj8dttx.noticeable.news/publications/meeting-sdk-web-v2-9-0?embed=true) I am stuck as how to update/install it in my device. I also went to another website showing the steps to do it (https://marketplace.zoom.us/docs/sdk/native-sdks/web/build/) but i am really confused. I am a non-coder. I dont know how to run and where to run these codes or what is the difference between NPM & CDN. Kindly please give me a simple solution of software through which i can install or update it without running a code or so