Mismatched list tags in array template

https://github.com/Textalk/angular-schema-form/blob/21f6d3ab64435b032456dfe19e03f96b29366320/src/directives/decorators/bootstrap/array.html#L3-L12

Not sure which is desired, but my guess is `<ol>` since the array _ordering_ is relevant. But I can see a case being made for either.
