The "FAQ" link at the end was changed to a Wikipedia link; reflect that.
Closes #17725: small grammar fix.
Closes #15213: update comment for _PyOS_URandom
Closes #11807: document argparse add_subparsers method better.

Patch by Filip Gruszczyński.
Closes #15228: remove reference to Unix "touch"; it is confusing since the path needs to exist for os.utime() to succeed
Closes #15432: GzipFile mtime argument is new in 3.1.
Fix typo in function name.
Fix: win32_ver returns a 4-tuple. Found by Andrew Berg on docs@.
Fix typo in example file name. Found by John Bokma on docs@.
Fix: >= and so on are usually called "comparison operators", not "logical operators". Found by Tom Kalt on docs@.
Fix name of the "exist_ok" argument. Found by Neil Bushong on docs@.
Use the platform-independent way of calling a script from the shell: "python prog.py", not "prog.py"

Found by Micheal Wells on docs@.
Extending example: use Py_RETURN_NONE
Closes #1215: document better why it is not a good idea to catch e.g. SIGSEGV and refer to faulthandler.

Patch by Martin Pool.