makePrisms example in the README doesn't compile

[RyanGlScott]

The README currently provides this example of how to use makePrisms:

You can automatically derive isomorphisms for your own newtypes with makePrisms. e.g.

newtype Neither a b = Neither { _nor :: Either a b } deriving (Show)
makePrisms ''Neither

will automatically derive

neither :: Iso (Neither a b) (Neither c d) (Either a b) (Either c d)
nor :: Iso (Either a b) (Either c d) (Neither a b) (Neither c d)

such that

from neither = nor
from nor = neither
neither.nor = id
nor.neither = id

Unfortunately, this example appears to have bitrotted severely, as it no longer compiles with modern lens. Declaring makePrisms ''Neither won't generate Isos named neither or nor, despite what it claims, but rather it will generate:

_Neither :: Iso (Neither a b) (Neither c d) (Either a b) (Either c d)

As far as I can tell, there is no TH functionality to generate the nor Iso above. (You can use makeLenses ''Prisms, but that will generate nor :: Iso (Neither a b) (Neither c d) (Either a b) (Either c d), which is a different type than the one claimed above.)

My guess is that generating neither/nor was the behavior of the old makeIso function, which was removed nearly six years ago in favor of makePrisms. However, this example in the README was never updated accordingly.