[Wanna try LIVE SERVER++ (BETA) ? It'll enable live changes without saving file. https://github.com/ritwickdey/vscode-live-server-plus-plus ]
Live Server
Live Server loves 💘 your multi-root workspace
Live Server for server side pages like PHP. Check Here
[For 'command not found error' #78]

Launch a local development server with live reload feature for static & dynamic pages.

Shortcuts to Start/Stop Server
[NOTE: In case if you don't have any .html or .htm file in your workspace then you have to follow method no 4 & 5 to start server.]
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Open a project and click to Go Live from the status bar to turn the server on/off.

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Right click on a HTML file from Explorer Window and click on Open with Live Server.
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Open a HTML file and right-click on the editor and click on Open with Live Server.