Update python/ql/src/Classes/SubclassShadowing/SubclassShadowing.qhelp

Co-authored-by: Taus <tausbn@github.com>

Author: joefarebrother

python/ql/src/Classes/SubclassShadowing/SubclassShadowing.qhelp

@@ -4,7 +4,7 @@
 <qhelp>
 <overview>
 <p>
-When an object has an attribute that shares the same name a method on the object's class (or another class attribute), the instance attribute is 
+When an object has an attribute that shares its name with a method on the object's class (or another class attribute), the instance attribute is 
 prioritized during attribute lookup, shadowing the method.  
 
 If a method on a subclass is shadowed by an attribute on a superclass in this way, this may lead to unexpected results or errors, as this