Add more descriptive text for InvalidDocblockParamName

docs/running_psalm/issues.md

@@ -612,7 +612,7 @@ $a = [];
 
 ### InvalidDocblockParamName
 
-Emitted when a docblock param name doesn’t match up with a named param in the function.
+Emitted when a docblock param name doesn’t match up with a named param in the function, if the param doesn’t have a type or its type is `array`.
 
 ```php
 /**