Hi,
thank you for the project. I checked the source code to resolve it but it seems that not all parts of the code2tutorial.com has been published. (I specifically checked for example to see how the generated markdown files are saved/retrieved, but its code doesn't seem to be here)
Since the github requests are limited, I imagine that there is a caching mechanism per project. When I changed and re-attempted, excludedPatterns aren't considered again.
The screenshot shows that even though vendor/* folder pattern is excluded, items inside it still pop up being selected.

Hence, I submit this bug, thank you for all the good work you do!