Note in docuementation that auto-run relies on VSCode file watchers

[Ipiano]

Checklist

• [ x ] Checked Support page

Is your feature request related to a problem? Please describe.

My project was not auto-running tests as expected. It took me a while to discover that this was due to the fact that I had excluded **/build/** from VSCode file watchers (setting ID files.watcherExclude) because the large number of generated build files was causing issues.

It was not clear to me that this feature would not work correctly because I had excluded the test executable from the watched files in this manner; I would like to see this indicated in documentation (or fixed to not be a problem).

It would be nice if the extension could detect this issue and notify the user.

[matepek]

Hello, Added note to support.md