Update README and bump version

Author: JeffFessler

Project.toml

@@ -1,6 +1,6 @@
 name = "LinearMaps"
 uuid = "7a12625a-238d-50fd-b39a-03d52299707e"
-version = "2.7.0"
+version = "2.8.0"
 
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"

README.md

@@ -8,6 +8,10 @@ A Julia package for defining and working with linear maps, also known as linear
 transformations or linear operators acting on vectors. The only requirement for
 a LinearMap is that it can act on a vector (by multiplication) efficiently.
 
+## What's new in v2.8
+*   Left multiplying by a transpose or adjoint vector (e.g., `y'*A`)
+    produces a transpose or adjoint vector output, rather than a `LinearMap`.
+
 ## What's new in v2.7
 *   Potential reduction of memory allocations in multiplication of
     `LinearCombination`s, `BlockMap`s, and real- or complex-scaled `LinearMap`s.