Update docs/spec/generics.rst

Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>

Author: erictraut

docs/spec/generics.rst

@@ -338,7 +338,7 @@ Instantiating generic classes and type erasure
 ----------------------------------------------
 
 User-defined generic classes can be instantiated. Suppose we write
-a ``Node`` class using the new generic class syntax::
+a ``Node`` class::
 
   class Node[T]:
       ...