fixed typos

src/registrar/forms/domain.py

@@ -59,7 +59,7 @@ class ContactForm(forms.ModelForm):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         # take off maxlength attribute for the phone number field
-        # which interferes with out input_with_errors template tag
+        # which interferes with our input_with_errors template tag
         self.fields["phone"].widget.attrs.pop("maxlength", None)
 
         for field_name in self.required:

src/registrar/views/domain.py

@@ -142,7 +142,7 @@ class DomainYourContactInformationView(DomainPermission, FormMixin, DetailView):
         form.save()
 
         messages.success(
-            self.request, "Your contact information for this domain have been updated."
+            self.request, "Your contact information for this domain has been updated."
         )
         # superclass has the redirect
         return super().form_valid(form)