Python docs bug

[Lawrence D'Oliveiro]

One long-standing irritation I have with the table of contents for the 
Python Library Reference <http://docs.python.org/lib/lib.html>, is that 
there is one very important section, "String Methods" 
<http://docs.python.org/lib/string-methods.html>, which does not appear 
there. That's because it is section 2.3.6.1, and the table of contents 
only goes to 3 levels.