Wording improvement as suggested by submitter

xml/issue3996.xml

@@ -45,10 +45,10 @@ int main() {
 In the above example, <tt>ranges::for_each</tt> requires <tt>indirect_unary_predicate&lt;Pred, projected&lt;I, identity&gt;&gt;</tt>
 which ultimately requires <tt>invocable&lt;Pred&amp;, iter_common_reference_t&lt;projected&lt;I, identity&gt;&gt;&gt;</tt>.
 <p/> 
-According to the current wording, the reference and value type of <tt>projected&lt;I, identity&gt;</tt> are <tt>filter_view&amp;&amp;</tt> 
-and <tt>filter_view&amp;</tt> respectively, which causes its common reference to be eventually calculated as 
-<tt>const filter_view&amp;</tt>. Since the former is not <tt>const</tt>-iterable, this results in a hard error during 
-instantiation because <tt>const begin</tt> is called unexpectedly in an unconstrained lambda.
+According to the current wording, the reference and indirect value type of <tt>projected&lt;I, identity&gt;</tt> are 
+<tt>filter_view&amp;&amp;</tt> and <tt>filter_view&amp;</tt> respectively, which causes its common reference to be eventually 
+calculated as <tt>const filter_view&amp;</tt>. Since the former is not <tt>const</tt>-iterable, this results in a hard error 
+during instantiation because <tt>const begin</tt> is called unexpectedly in an unconstrained lambda.
 </p>
 <p>
 It seems like having <tt>projected&lt;I, identity&gt;</tt> just be <tt>I</tt> is a more appropriate choice,