another couple of small wording tweaks

Author: adqm

peps/pep-0798.rst

@@ -758,8 +758,8 @@ a `poll in the Discourse thread
 Beyond the proposal outlined above, the following were also considered:
 
 1. Using ``yield from`` for unpacking in synchronous generator expressions but
-   not in asynchronous generator expressions (as proposed in the original draft
-   of this PEP).
+   using an explicit loop in asynchronous generator expressions (as proposed in
+   the original draft of this PEP).
 
    This strategy would have allowed unpacking in generator expressions to
    closely mimic a popular way of writing generators that perform this
@@ -789,8 +789,8 @@ Beyond the proposal outlined above, the following were also considered:
 4. Disallowing unpacking in all generator expressions.
 
    This would retain symmetry between the two cases, but with the downside of
-   losing an expressive form and symmetry between list/set comprehensions and
-   generator expressions.
+   losing an expressive form and reducing symmetry between list/set
+   comprehensions and generator expressions.
 
 Each of these options (including the one presented in this PEP) has its
 benefits and drawbacks, with no option being clearly superior on all fronts.