donation link

You can donate to PyGAD via [Open Collective](https://opencollective.com/pygad): [opencollective.com/pygad](https://opencollective.com/pygad). 
To donate using PayPal, use either this link: [paypal.me/ahmedfgad](https://paypal.me/ahmedfgad) or the e-mail address [email protected].

Author: ahmedfgad

README.md

@@ -8,6 +8,12 @@ Check documentation of the [GeneticAlgorithmPython](https://github.com/ahmedfgad
 
 The library is under active development and more features in the genetic algorithm will be added like working with binary problems. This is in addition to supporting more machine learning algorithms.
 
+# Donation
+
+You can donate to PyGAD via [Open Collective](https://opencollective.com/pygad): [opencollective.com/pygad](https://opencollective.com/pygad). 
+
+To donate using PayPal, use either this link: [paypal.me/ahmedfgad](https://paypal.me/ahmedfgad) or the e-mail address [email protected].
+
 # Tutorial Project
 
 **IMPORTANT** If you are coming for the code of the tutorial titled  [**Genetic Algorithm Implementation in Python**](https://www.linkedin.com/pulse/genetic-algorithm-implementation-python-ahmed-gad), then it has been moved to the [Tutorial Project](https://github.com/ahmedfgad/GeneticAlgorithmPython/tree/master/Tutorial Project) directory on 06 May 2020.