Merge pull request grails#217 from tedder/patch-1

fix filename typo

src/en/guide/upgradingFrom23.gdoc

@@ -101,7 +101,7 @@ If you or any plugins you have installed are using these classes you will get a
 If your application uses the jquery plugin you will need to update to version 1.11.0.2 or later as previous versions of the plugin made use of the @ApplicationHolder@ class.  If your application uses the resources plugin you will need to update to version 1.2.7 or later as previous versions of the plugin made use of the @ConfigurationHolder@ class.
 {note}
 
-h4. Changes To applicationContex.xml
+h4. Changes To applicationContext.xml
 
 The @web-app/WEB-INF/applicationContext.xml@ file contains a bean definition for a @grailsResourceLoader@ bean which is an instance of @org.codehaus.groovy.grails.commons.GrailsResourceLoaderFactoryBean@.  That bean definition needs to be removed from the file.  The @grailsApplication@ bean may have the @grailsResourceLoader@ bean injected into it as shown below.