INT-3133 Doc Polishing

src/reference/docbook/spel.xml

@@ -141,6 +141,9 @@
 				the same name.
 			</note>
 		</para>
+		<para>
+			<emphasis role="bold">Built-in SpEL Functions</emphasis>
+		</para>
 		<para>
 			Spring Integration provides some standard functions, which are registered with the application
 			context automatically on start up:

src/reference/docbook/transformer.xml

@@ -351,8 +351,8 @@ public class Foo {
 <int-amqp:inbound-channel-adapter ... message-converter="jsonConverterWithPOType" ... />]]></programlisting>
     </important>
     <para>
-      In addition to JSON Transformers Spring Integration provides out-of-the-box <emphasis>#jsonPath</emphasis>
-      SpEL function. For more information see <xref linkend="spel"/>.
+      In addition to JSON Transformers, Spring Integration provides a built-in <emphasis>#jsonPath</emphasis>
+      SpEL function for use in expressions. For more information see <xref linkend="spel"/>.
     </para>
   </section>