[🚀 Request] Clarify how extest should be executed in documentation

[mlorinc]

For context, please see the test setup documentation page. There is not any mention how to run extest util nor any example how functioning application should look like.

[djelinek]

@mlorinc could you provide some example what exactly you are missing?

[mlorinc]

For example, there is no mention how to run extest. Normally, it is executed from npm run script defined in package.json. However, we do not mention it anywhere in wiki.

Using dialogs on welcome page might be completely obsolete by now as we removed native dialogs from tester. The whole guide is segmented into multiple sub-pages instead grouped into single page, which would explain the whole process of getting started. The last remark is my point of view about how we should handle user experience and we should mainly focus on the example I have given.

[mlorinc]

Another idea would be to add command to extest which would initialise test files and test folders. It would me much more convenient to get started than it is now.