[docs] bug report for docs.python.org for sqlite3 library doc

[Benjamin Dopplinger]

hi

I have found a bug on the page http://docs.python.org/3/library/sqlite3.html.
There are a few examples where the documentation shows that it is
possible to call close() on a Cursor object.
But according to the list of all the Cursor methods which can be found
on http://docs.python.org/3/library/sqlite3.html#cursor-objects no
such close() method exists (although it does exist of course).

So the only fix which has to be applied is to add the close() method
in the listing of all the Cursor methods on
http://docs.python.org/3/library/sqlite3.html#cursor-objects.

Best regards
Benjamin Dopplinger