Fix: syntax error in ruleset.xml

dev/codesniffer/ruleset.xml

@@ -219,6 +219,10 @@
 	<rule ref="PEAR.NamingConventions.ValidFunctionName.FunctionNameInvalid">
         <severity>0</severity>
 	</rule>
+	<rule ref="PEAR.NamingConventions.ValidFunctionName.FunctionNoCapital">
+        <severity>0</severity>
+	</rule>
+	<!-- some phpcs have a typo error in rule, so we add it too -->
 	<rule ref="PEAR.NamingConventions.ValidFunctionName.FunctionNoCaptial">
         <severity>0</severity>
 	</rule>