Update index.php

[bph]

It explains, why there is nothing to see.

[kjellr]

This makes sense. I wonder if this should be printed as a translatable string, but I might be overthinking it. 😄 I'll let someone else weigh in on that too.

[carolinan]

Yes all theme text strings need to be translation ready :) Example https://github.com/WordPress/theme-experiments/blob/master/armando/index.php

[bph]

@carolinan and @kjellr Thank you :-)