Require Nowdoc (#65)

Co-authored-by: Mikulas Bacinsky <[email protected]>

Author: baci266

src/Cdn77/ruleset.xml

@@ -83,6 +83,7 @@
     <rule ref="SlevomatCodingStandard.Files.LineLength"/>
     <rule ref="SlevomatCodingStandard.Functions.RequireArrowFunction" />
     <rule ref="SlevomatCodingStandard.Functions.RequireTrailingCommaInDeclaration" />
+    <rule ref="SlevomatCodingStandard.PHP.RequireNowdoc" />
 
     <rule ref="SlevomatCodingStandard.TypeHints.UnionTypeHintFormat">
         <properties>