Issue #27626: Spelling fixes in docs, comments and internal names

Based on patch by Ville Skyttä.
diff --git a/Doc/library/configparser.rst b/Doc/library/configparser.rst
index eeae96a..a9a5f5a 100644
--- a/Doc/library/configparser.rst
+++ b/Doc/library/configparser.rst
@@ -66,7 +66,7 @@
 <#supported-ini-file-structure>`_.  Essentially, the file
 consists of sections, each of which contains keys with values.
 :mod:`configparser` classes can read and write such files.  Let's start by
-creating the above configuration file programatically.
+creating the above configuration file programmatically.
 
 .. doctest::