Update Doc/library/csv.rst

Co-authored-by: maurycy <[email protected]>

Author: serhiy-storchaka

Doc/library/csv.rst

@@ -113,7 +113,7 @@ The :mod:`csv` module defines the following functions:
           spamwriter.writerow(['Spam', 'Lovely Spam', 'Wonderful Spam'])
 
 
-.. function:: register_dialect(name, /, dialect='excell', **fmtparams)
+.. function:: register_dialect(name, /, dialect='excel', **fmtparams)
 
    Associate *dialect* with *name*.  *name* must be a string. The
    dialect can be specified either by passing a sub-class of :class:`Dialect`, or