Update license info

Author: ahmedfgad

pyproject.toml

@@ -13,15 +13,17 @@ version = "3.6.0"
 description = "PyGAD: A Python Library for Building the Genetic Algorithm and Training Machine Learning Algoithms (Keras & PyTorch)."
 readme = {file = "README.md", content-type = "text/markdown"}
 requires-python = ">=3"
-license = {file = "LICENSE"}
+# license = {file = "LICENSE"}
+license = "BSD-3-Clause"
+license-files = ["LICENSE"]
 authors = [
   {name = "Ahmed Gad", email = "ahmed.f.gad@gmail.com"},
 ]
 maintainers = [
 {name = "Ahmed Gad", email = "ahmed.f.gad@gmail.com"}
 ]
 classifiers = [
-  "License :: OSI Approved :: BSD License",
+  # "License :: OSI Approved :: BSD License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "Natural Language :: English",