Update datastructures.rst

I changed **the Unicode code point number** to **Unicode code point** because **the Unicode code point** already has the meaning of a number.

Author: hyperkai

Doc/tutorial/datastructures.rst

@@ -720,7 +720,7 @@ sequences of the same type, the lexicographical comparison is carried out
 recursively.  If all items of two sequences compare equal, the sequences are
 considered equal. If one sequence is an initial sub-sequence of the other, the
 shorter sequence is the smaller (lesser) one.  Lexicographical ordering for
-strings uses the Unicode code point number to order individual characters.
+strings uses the Unicode code point to order individual characters.
 Some examples of comparisons between sequences of the same type::
 
    (1, 2, 3)              < (1, 2, 4)