Haddock description is mangled

[Bodigrim]

As a side effect of upgrading cabal-version to 3.0

vector/vector/vector.cabal

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	Description:
	.
	An efficient implementation of @Int@-indexed arrays (both mutable
	and immutable), with a powerful loop optimisation framework .
	.
	It is structured as follows:
	.
	["Data.Vector"] Boxed vectors of arbitrary types.
	.
	["Data.Vector.Unboxed"] Unboxed vectors with an adaptive
	representation based on data type families.
	.
	["Data.Vector.Storable"] Unboxed vectors of 'Storable' types.
	.
	["Data.Vector.Primitive"] Unboxed vectors of primitive types as
	defined by the @primitive@ package. "Data.Vector.Unboxed" is more
	flexible at no performance cost.
	.
	["Data.Vector.Generic"] Generic interface to the vector types.
	.
	There is also a (draft) tutorial on common uses of vector.
	.
	* <http://haskell.org/haskellwiki/Numeric_Haskell:_A_Vector_Tutorial>

no longer renders correctly, see https://hackage.haskell.org/package/vector-0.13.2.0