Fix typo in variable name from 'POINTS_DESCEDING' to 'POINTS_DESCENDING'

[HeelMePlz]

Description

Hi, I just noticed there was a typo in the variable called 'POINTS_DESCEDING' and thought to fix that to 'POINTS_DESCENDING' just to try and avoid any accidents. I don't believe this should impact how anything works. I could not find any issues raised pertaining to this.

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented on my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (README.md)
• My changes generate no new warnings
• Any dependent changes have been updated in requirements.txt