C++: Convert another paragraph to a numbered list.

Author: MathiasVP

docs/codeql/codeql-language-guides/advanced-dataflow-scenarios-cpp.rst

@@ -392,7 +392,12 @@ To set the stage, consider the following scenario:
     free(b.a);
   }
 
-We write a user-controlled value into the object ``b`` at the access path ``[a, x]``. Afterwards, ``b`` is passed to ``read_data`` which we don't have the definition of in the database. We now want to track this user-input flowing into ``read_data``.
+What happens here is the following:
+
+  1. We write a user-controlled value into the object ``b`` at the access path ``[a, x]``.
+  2. Afterwards, ``b`` is passed to ``read_data`` which we don't have the definition of in the database.
+
+We now want to track this user-input flowing into ``read_data``.
 
 The dataflow library has a specific predicate to handle this scenario, and thus we don't need to add any additional flow steps using ``isAdditionalFlowStep``. Instead, we tell the dataflow library that ``read_data`` is a sink and may implicitly read the data from fields in the object it is passed. To do that, we implement ``allowImplicitRead`` in our dataflow module: