Apply suggestions from code review

Author: encukou

peps/pep-0793.rst

@@ -398,7 +398,7 @@ Forward compatibility
 If a module defines the new export hook, CPython versions that implement this
 PEP will ignore the traditional ``PyInit_*`` hook.
 
-Extensions that straddle vPython ersions are expected to define both hooks;
+Extensions that straddle Python versions are expected to define both hooks;
 each build of CPython will “pick” the newest one that it supports.