[BUG]: Issue in the documentation of the Mealpy library

[gssakash]

Description of the bug

This isn't exactly a bug with the library but more like a problem with outdated documentation. In the documentation for a lot of the implementation there is a particular n_vars variable that is being used which looks like it's outdated as it isn't required anymore for running the Swarm Intelligence based functions.

Steps To Reproduce

1. Go to MFO
2. Try running the code in any python interpreter and you'll notice a error which says n_vars is undefined or something similar.
3. It is required to only remove this n_vars variable from the documentation which is enough. The code is fine without it.

Additional Information

No response

[thieu1995]

@gssakash

Thanks for reporting it. I will update the docs website when I have time.