Rewording named arguments documentation as per PR review

language/functions.xml

@@ -228,8 +228,8 @@ function takes_many_args(
    <para>
     As of PHP 8.0.0, passing optional arguments after mandatory arguments
     is deprecated. This can generally be resolved by dropping the default value.
-    One exception to this rule are parameters of the form
-    Type $param = &null;, where the &null; default makes the type implicitly
+    One exception to this rule are arguments of the form
+    <code>Type $param = &null;</code>, where the &null; default makes the type implicitly
     nullable. This usage remains allowed, though it is recommended to use an
     explicit nullable type instead.
    </para>
@@ -633,7 +633,7 @@ array_fill(start_index: 0, num: 100, value: 50);
     </para>
 
     <example>
-     <title>Same as above example with a different order of parameters</title>
+     <title>Same example as above with a different order of parameters</title>
      <programlisting role="php">
       <![CDATA[
 <?php
@@ -644,7 +644,7 @@ array_fill(value: 50, num: 100, start_index: 0);
     </example>
 
     <para>
-     You can combine named arguments with positional arguments. In this case,
+     Named arguments can be combined with positional arguments. In this case,
      the named arguments must come after the positional arguments.
      It is also possible to specify only some of the optional arguments of a
      function, regardless of their order.