Start a simple http file server.

• For macOS users, you may not able to run the binary because of signature validation issues, but since macOS may have built-in python, you can try using python -m http.server to start one. (Or maybe python3 -m http.server)
• For other operating systems, we've provide one at https://github.com/Crossbell-Box/go-http-fileserver/releases/latest , download the zip file that matches your platform and unzip it into workspace directory, you'll see the structure like below:

Start the server. You'll see a link like below:

Follow the link printed from console. You'll open a page like below: