SPR-8540 Minor Freemarker import related documentation fix

org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/view/freemarker/FreeMarkerConfigurer.java

@@ -59,7 +59,7 @@ import org.springframework.web.context.ServletContextAware;
  * in spring.jar) like this:
  *
  * <pre>
- * &lt;#import "spring.ftl" as spring/&gt;
+ * &lt;#import "/spring.ftl" as spring/&gt;
  * &lt;@spring.bind "person.age"/&gt;
  * age is ${spring.status.value}</pre>
  *

spring-framework-reference/src/view.xml

@@ -1217,7 +1217,7 @@ findOwnersForm.url=/WEB-INF/jsp/findOwners.jsp
 
         <programlisting language="xml">&lt;!-- freemarker macros have to be imported into a namespace.  We strongly
 recommend sticking to 'spring' --&gt;
-&lt;#import "spring.ftl" as spring /&gt;
+&lt;#import "/spring.ftl" as spring /&gt;
 &lt;html&gt;
 ...
 &lt;form action="" method="POST"&gt;