uniform samples

[mpo]

sample-modules should follow a common strategy that helps them explain themselves

Main observation now is that the standard / path doesn't return a thing in some cases.

This could be changed to

1. let / path redirect to /menu
2. /menu should provide a list of links to visit to 'experience' the sample

Need to think about providing some explanation 'about' on each link and/or the sample as a whole.

[mpo]

All current samples have complied to the sensible response on '/'

Further alignment could happen when aggregating services are in place.

We of course need to keep an eye on future samples to follow the technique.