Documentation: Fix anchor tag for Action 0 - Global Settings

docs/newgrf-additions.html

@@ -249,7 +249,7 @@
 	</p>
 	<p>This is indicated by the feature name: <font face="monospace">action0_roadtype_extra_flags</font>, version 1</p>
 	<br />
-	<h3 id="a0bridges"><a href="https://newgrf-specs.tt-wiki.net/wiki/Action0/Global_Settings">Action 0 - Global Settings</a></h3>
+	<h3 id="a0globalsettings"><a href="https://newgrf-specs.tt-wiki.net/wiki/Action0/Global_Settings">Action 0 - Global Settings</a></h3>
 	<h4 id="global_extra_station_names">Extra station names (mappable property: global_extra_station_names)</h4>
 	<p>This adds extra station names for use when all the avilable station names for a given town have been used.<br />
 	The string should have the same format and use the same ID range as