[Docs] Corrected NamingStrategy demo code to match example

[yesdevnull]

From the NamingStrategy docs:

...all column names should be upper case...

Example paragraph mentions changing column titles to upper case, yet strtolower was being used. Corrected demo code to match the instructions.

[carlosbuenosvinos]

Thanks for the contribution, @yesdevnull! In this case, I think it probably makes more sense to change the description for than the code. I would say is more typical to have lowercase table names than uppercase names, what do you think?

[yesdevnull]

@carlosbuenosvinos likewise 😄 I will adjust accordingly.

(apologies for very late reply, didn't see the notification for this)

[Majkl578]

@yesdevnull Thanks!