Rename is_anonymous to are_voters_known

cmd/web/handlers.go

@@ -26,9 +26,9 @@ func (app *application) createElection(w http.ResponseWriter, r *http.Request) {
 	request.CheckField(validator.GreaterThan(len(request.Choices), 1), "choices", "there must be more than 1 choice")
 
 	request.CheckField(
-		!request.IsAnonymous || (request.IsAnonymous && *request.MaxVoters > 0),
+		!request.AreVotersKnown || (request.AreVotersKnown && *request.MaxVoters > 0),
 		"maxVoters",
-		"must be greater than 0 for anonymous elections",
+		"must be greater than 0 when voters are known",
 	)
 
 	if !request.Valid() {