Subtitle "Frog hatches" should be "Tadpole hatches"

It is tadpoles, instead of frogs, that are hatched from frogspawn, so renaming the subtitle "Frog hatches" to "Tadpole hatches" could be more accurate. Additionally, there are multiple tadpoles hatched from one frogspawn block at a time, so "Tadpoles hatch" could also be considered.