* Fixed error in Integer Partition
returns the wrong total for some values of n
e.g. when n is 6 returns 14 instead of 11

This more closely resembles the code from referenced in the README:
https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/math/integer-partition

* added some simple comments

* fixed error in Integer Partition
on some values it would print wrong partitions
e.g. when n is 6 [3,3,1] is printed but is not a valid output

* fixed a typo

Co-authored-by: Eti <ethiennegraveline@gmail.com>