typo in docs

Author: dkarrasch

docs/src/types.md

@@ -147,9 +147,9 @@ as in the usual matrix case: `transpose(A) * x` and `mul!(y, A', x)`, for instan
 ### Slicing methods
 
 Complete slicing, i.e., `A[:,j]`, `A[:,J]`, `A[i,:]`, `A[I,:]` and `A[:,:]` for `i`, `j`
-`Integer` and `I,J` `AbstractVector{<:Integer}` is generically available for any
+`Integer` and `I`, `J` `AbstractVector{<:Integer}` is generically available for any
 `A::LinearMap` subtype via application of `A` (or `A'` for (predominantly) horizontal
 slicing) to standard unit vectors of appropriate length. By complete slicing we refer
 two-dimensional Cartesian indexing where at least one of the "indices" is a colon. This is
 facilitated by overloads of `Base.getindex`. Partial slicing à la `A[I,J]` and scalar or
-linear indexing are _not_ supported for performance reasons.
+linear indexing are _not_ supported.