fix: remove LaTeX formatting

main.py

@@ -92,7 +92,7 @@ more strongly favors methods having very low ranks on some datasets. It therefor
 We introduce improvability as a metric that measures how many percent lower the error 
 of the best method is than the current method on a dataset. This is then averaged over 
 datasets. Formally, for a single dataset improvability is (err_i - besterr_i)/err_i * 100\%.
-Improvability is always between $0\%$ and $100\%$.   
+Improvability is always between 0\% and 100\%.   
 
 ---