Fix Release Issues

[feanil]

When we tried to release version 4.0.0, we had some errors, see the build logs here: https://github.com/openedx/openedx-calc/actions/runs/11915588631/job/33206190829

Checking dist/openedx_calc-4.0.0-py3-none-any.whl: FAILED
ERROR    `long_description` has syntax errors in markup and would not be        
         rendered on PyPI.                                                      
         line 56: Severe: Title level inconsistent:                             
                                                                                
         Documentation                                                          
         =============                                                          
Checking dist/openedx_calc-4.0.0.tar.gz: FAILED
ERROR    `long_description` has syntax errors in markup and would not be        
         rendered on PyPI.                                                      
         line 56: Severe: Title level inconsistent:                             
                                                                                
         Documentation                                                          
         =============                                                          

[Colin-Fredericks]

Making very simple pull request, #125 , that I think might fix this.

[feanil]

That fixed it, thanks @Colin-Fredericks!