• Fixed a bug where auto-generated description (with constraint annotation) for endpoint parameters would not get rendered in the resulting markdown.
• Fixed a bug in constraint annotation concat procedure, where the generator would emit more line terminators than necessary.

Maybe we need some more tests here (should be done in another PR):

• for all constraints we support
• for constraint concatenation (since it was still buggy and produced more line terminators than it should)

Constraints implementation is still wacky at times, for example, having a Spec Object like this:

schema:
  type: number
  default: 0

would not produce a readable annotation for default value, since 0 is falsy :)