Apply suggestions from code review

Co-authored-by: David Cook <dcook@divviup.org>

draft-irtf-cfrg-vdaf.md

@@ -3229,7 +3229,7 @@ Applying this idea to the example circuit `C` above:
    protect the privacy of the measurement.) It sends secret shares of `x` and
    the coefficients of `p` to each of the Aggregators.
 
-1. Each Aggregator locally computes and broadcasts its share of `p(0)`, which
+1. Each Aggregator locally computes and broadcasts its share of `p(1)`, which
    is equal to its share of `C(x)`.
 
 In fact, our FLP is slightly more general than this. We can replace the
@@ -3238,7 +3238,7 @@ For example, in {{prio3sum}}, the validity circuit uses the following
 sub-circuit multiple times:
 
 ~~~
-Range2(x) = x * (x -1) = x^2 - x
+Range2(x) = x * (x - 1) = x^2 - x
 ~~~
 
 (This is the same functionality computed by the example circuit `C` above.)