Avoid invalid escape sequence in example

Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>

Author: SnoopJ

Doc/tutorial/introduction.rst

@@ -184,12 +184,11 @@ If you don't want characters prefaced by ``\`` to be interpreted as
 special characters, you can use *raw strings* by adding an ``r`` before
 the first quote::
 
-   >>> print('C:\some\name')  # here \n means newline, and \s means nothing!
-   <python-input-0>:1: SyntaxWarning: "\s" is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\\s"? A raw string is also an option.
-   C:\some
+   >>> print('C:\this\name')  # here \t means tab, \n means newline
+   C:      his
    ame
-   >>> print(r'C:\some\name')  # note the r before the quote
-   C:\some\name
+   >>> print(r'C:\this\name')  # note the r before the quote
+   C:\this\name
 
 There is one subtle aspect to raw strings: a raw string may not end in
 an odd number of ``\`` characters; see