proposed modification on KerasGA

[tfarrag2000]

Dear Dr. Ahmed,
I try to use your wonderful library to train some models and it works great. but I notice errors with certain models. I solve these errors by concentrate on training the "trainable weights" only.
My modification is as follow:

[ahmedfgad]

Dear Prof. Tamer,

I will fix it soon!

Thanks too much!

[tfarrag2000]

Thank you, Dr. Ahmed

[ahmedfgad]

The change is reflected and will be pushed soon to the new release of PyGAD 2.10.1. Thanks.