Update documentation for index route

I think the documentation needs updated for an index route.

For example, this will break because app.calendar and app.calendar.index refer to the same route:

app.tsx
app.calendar.tsx
app.calendar.index.tsx

But this works as intended:

app.tsx
app.calendar.tsx
app.calendar._index.tsx

[barbinbrad]

Yes, that did it. Thank you.

[kiliman]

You need to update ingoredRoutesFiles to ['**/*']. (ignore all files recursively)

Your config only ignores files starting with . in the root folder.