fix instances of consecutive articles (closes #23221)

Patch by Karan Goel.

Doc/c-api/exceptions.rst

@@ -64,7 +64,7 @@ in various ways.  There is a separate error indicator for each thread.
       Do not compare the return value to a specific exception; use
       :c:func:`PyErr_ExceptionMatches` instead, shown below.  (The comparison could
       easily fail since the exception may be an instance instead of a class, in the
-      case of a class exception, or it may the a subclass of the expected exception.)
+      case of a class exception, or it may be a subclass of the expected exception.)
 
 
 .. c:function:: int PyErr_ExceptionMatches(PyObject *exc)

Doc/c-api/init.rst

@@ -1182,7 +1182,7 @@ These functions are only intended to be used by advanced debugging tools.
 
 .. c:function:: PyThreadState * PyInterpreterState_ThreadHead(PyInterpreterState *interp)
 
-   Return the a pointer to the first :c:type:`PyThreadState` object in the list of
+   Return the pointer to the first :c:type:`PyThreadState` object in the list of
    threads associated with the interpreter *interp*.
 
 

Doc/c-api/structures.rst

@@ -131,7 +131,7 @@ The :attr:`ml_meth` is a C function pointer.  The functions may be of different
 types, but they always return :c:type:`PyObject\*`.  If the function is not of
 the :c:type:`PyCFunction`, the compiler will require a cast in the method table.
 Even though :c:type:`PyCFunction` defines the first parameter as
-:c:type:`PyObject\*`, it is common that the method implementation uses a the
+:c:type:`PyObject\*`, it is common that the method implementation uses the
 specific C type of the *self* object.
 
 The :attr:`ml_flags` field is a bitfield which can include the following flags.