[maxmsp] 5.01 MAX tutorial 22 link broken

Just in case its not been noticed, since the update to 5.01 the links to to the XML page for MAX Tutorial 22 (Designing Equations), for both the online and internal documentation have been broken.
The tutorials have seemingly been renamed from maxchapterXX.html (or .xml) to basicchapterXX.html (or .xml), but the link to tutorial 22 is still to the old filename style.

to fix this, you can hand-edit the file <MAX 5 install>\Cycling '74\docs\tutorials\max-tut\maxindex.maxtut.xml in a text editor, changing part of line 37

from 

<li><link type="tutorial" module="max" name="maxchapter22">

to

<li><link type="tutorial" module="max" name="basicchapter22">