help tweak: Scripts can use the injected core variables

Signed-off-by: kingthorin <kingthorin@users.noreply.github.com>

Author: kingthorin

CHANGELOG.md

@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [Unreleased]
 ### Changed
 - Maintenance changes.
+- The script example in the Help content was updated to use the injected core variables instead of using the fully qualified class name.
 
 ## [1.5.0] - 2022-07-11
 ### Added

src/main/javahelp/help/contents/intro.html

@@ -24,7 +24,7 @@ <H1>Neonmarker</H1>
 	<p></p>
 	<pre>
 		<code>
-		extNeon = org.parosproxy.paros.control.Control.getSingleton().getExtensionLoader().getExtension(org.zaproxy.zap.extension.neonmarker.ExtensionNeonmarker.NAME);
+		extNeon = control.getExtensionLoader().getExtension(org.zaproxy.zap.extension.neonmarker.ExtensionNeonmarker.NAME);
 
 		// History items tagged “Comment” will be red
 		extNeon.addColorMapping("Comment", 0x990000);