Clean up language in readme

Co-authored-by: Ruben Bartelink <ruben@bartelink.com>

Author: abelbraaksma

README.md

@@ -166,7 +166,7 @@ let feedFromTwitter user pwd = taskSeq {
 
 ## Choosing between `AsyncSeq` and `TaskSeq`
 
-The [`AsyncSeq`][11] and `TaskSeq` library both operate on asynchronous sequences, but there are a few fundamental differences, most notably that the former _does not_ implement `IAsyncEnumerable<'T>`, but has its own same-named, but differently behaving type. Another core difference is that `TaskSeq` uses `ValueTasks` for the asynchronous computations, and `AsyncSeq` uses F#'s `Async<'T>`.
+The [`AsyncSeq`][11] and `TaskSeq` libraries both operate on asynchronous sequences, but there are a few fundamental differences. The most notable being that the former _does not_ implement `IAsyncEnumerable<'T>`, though it does have a type of that name with different semantics (not surprising; it predates the definition of the modern one). Another key difference is that `TaskSeq` uses `ValueTask`s for the asynchronous computations, whereas `AsyncSeq` uses F#'s `Async<'T>`.
 
 There are more differences: