Address review comments

Author: capnrefsmmat

docs/symptom-survey/coding.md

@@ -289,9 +289,9 @@ well as
 
 ### Summary of Changes
 
-Wave 5 is a minor change to the survey instrument with the addition of a few new
-items. Please review the changes carefully when you use responses from multiple
-waves of this survey.
+Wave 5 contains minor changes to the survey instrument and a few new items.
+Please review the changes carefully when you use responses from multiple waves
+of this survey.
 
 Note that this changelog is a draft; as the survey instrument is finalized, this
 changelog will be updated to include all final changes.

docs/symptom-survey/collaboration-revision.md

@@ -14,8 +14,8 @@ public health and research goals.
 
 ## Survey Revisions
 
-If there is revision or question you would like us to consider please fill out
-[this form requesting details about your
+If there is a revision or question you would like us to consider, please fill
+out [this form requesting details about your
 proposal](https://forms.gle/q6NS8fPJJofKQ9mM8). This request can be submitted by
 researchers regardless of whether they have a signed Data Use Agreement for the
 individual responses to the COVID Symptom Survey.