bpo-45619: documentation of execution model: clarify and update binding summary

Doc/reference/executionmodel.rst

@@ -56,15 +56,25 @@ Binding of names
 
 .. index:: single: from; import statement
 
-The following constructs bind names: formal parameters to functions,
-:keyword:`import` statements, class and function definitions (these bind the
-class or function name in the defining block), and targets that are identifiers
-if occurring in an assignment, :keyword:`for` loop header, or after
-:keyword:`!as` in a :keyword:`with` statement or :keyword:`except` clause.
-The :keyword:`!import` statement
-of the form ``from ... import *`` binds all names defined in the imported
-module, except those beginning with an underscore.  This form may only be used
-at the module level.
+The following constructs bind names:
+
+* formal parameters to functions,
+* class definitions,
+* function definitions,
+* assignment expressions,
+* :ref:`targets <assignment>` that are identifiers if occurring in
+  an assignment:
+
+  + :keyword:`for` loop header,
+  + after :keyword:`!as` in a :keyword:`with` statement, :keyword:`except`
+    clause or in the as-pattern in structural pattern matching,
+  + in a capture pattern in structural pattern matching
+
+* :keyword:`import` statements.
+
+The :keyword:`!import` statement of the form ``from ... import *`` binds all
+names defined in the imported module, except those beginning with an underscore.
+This form may only be used at the module level.
 
 A target occurring in a :keyword:`del` statement is also considered bound for
 this purpose (though the actual semantics are to unbind the name).