Issue #27076: Doc, comment and test function name spelling fixes

Most fixes to Doc/ and Lib/ directories by Ville Skyttä.
diff --git a/Misc/ACKS b/Misc/ACKS
index df9ee4a..e586160 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1290,6 +1290,7 @@
 George Sipe
 J. Sipprell
 Kragen Sitaker
+Ville Skyttä
 Michael Sloan
 Nick Sloan
 Václav Šmilauer