Update wildcard-mappings.md (#156)
* Update wildcard-mappings.md
This value is required for the field to be set, as of version 2.5.25
diff --git a/source/core-developers/wildcard-mappings.md b/source/core-developers/wildcard-mappings.md
index bd4f3a7..a34c058 100644
--- a/source/core-developers/wildcard-mappings.md
+++ b/source/core-developers/wildcard-mappings.md
@@ -147,6 +147,8 @@
<constant name="struts.enable.SlashesInActionNames" value="true"/>
<constant name="struts.mapper.alwaysSelectFullNamespace" value="false"/>
<constant name="struts.patternMatcher" value="regex" />
+
+<constant name="struts.matcher.appendNamedParameters" value="true"/> <!-- Required from 2.5.25+ -->
```
The regular expressions can be in two forms, the simplest one is `{FIELD_NAME}`, in which case the field with
