Closes #17725: small grammar fix.
diff --git a/Doc/extending/index.rst b/Doc/extending/index.rst
index 75cf4c5..6112943 100644
--- a/Doc/extending/index.rst
+++ b/Doc/extending/index.rst
@@ -5,12 +5,12 @@
##################################################
This document describes how to write modules in C or C++ to extend the Python
-interpreter with new modules. Those modules can define new functions but also
-new object types and their methods. The document also describes how to embed
-the Python interpreter in another application, for use as an extension language.
-Finally, it shows how to compile and link extension modules so that they can be
-loaded dynamically (at run time) into the interpreter, if the underlying
-operating system supports this feature.
+interpreter with new modules. Those modules can not only define new functions
+but also new object types and their methods. The document also describes how
+to embed the Python interpreter in another application, for use as an extension
+language. Finally, it shows how to compile and link extension modules so that
+they can be loaded dynamically (at run time) into the interpreter, if the
+underlying operating system supports this feature.
This document assumes basic knowledge about Python. For an informal
introduction to the language, see :ref:`tutorial-index`. :ref:`reference-index`
diff --git a/Misc/ACKS b/Misc/ACKS
index cbef1f0..769624c 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -959,6 +959,7 @@
Kirill Simonov
Nathan Paul Simons
Guilherme Simões
+Kyle Simpson
Ravi Sinha
Janne Sinkkonen
Ng Pheng Siong