Local Host 8001 Won't Update

I'm a bit of a newbie to this but I am trying to edit files in the src folder and they are not reflecting on the browser. I tried editing the text on Index.html and nothing is appearing. Please advise!

Start by inspecting how localhost:8001 serves the files in the src folder, especially Index.html, and compare the edited file with the page being loaded in the browser. Confirm the serving entry point and reproduction steps, then verify that a visible text change in Index.html appears at localhost:8001.

Written by the indexing model from the issue text.