Small improvement

app/src/main/java/eu/faircode/email/FragmentRule.java

@@ -804,10 +804,13 @@ public class FragmentRule extends FragmentBase {
 
         tvAutomation.setText(getString(R.string.title_rule_automation_hint,
                 EntityRule.ACTION_AUTOMATION,
-                TextUtils.join(",", new String[]{
+                TextUtils.join(", ", new String[]{
                         EntityRule.EXTRA_RULE,
                         EntityRule.EXTRA_SENDER,
-                        EntityRule.EXTRA_SUBJECT})));
+                        EntityRule.EXTRA_NAME,
+                        EntityRule.EXTRA_SUBJECT,
+                        EntityRule.EXTRA_RECEIVED,
+                })));
 
         btnColorNotes.setOnClickListener(new View.OnClickListener() {
             @Override