Update explore.json

Edit summary: 
* Changed [title] and [message] from "or remix someone elses" to "Or remix one of these examples!"
* Changed [title] and [message] from "Get inspired by examples like these" to "Get inspired by more examples like these"
same for here. If you can remove "more" from `"Get inspired by more examples like these": {`, everything else in your changes for line 255 are great!