Updated READ.txt to add used reference materials for the project

README.txt

@@ -5,4 +5,14 @@ March 28, 2023
 I, Elaiza R. Bolislis, hereby certify that this laboratory project 
 is truthfully completed by me.
 
+The information used to populate the models, such as the Books and Author, 
+for this project came from Goodreads, Amazon, and their respective Wikipedia pages.
+
+Meanwhile, Meanwhile, the fields that were used in models.py that weren't taught 
+in the class were referenced from the Django documentation and Stack Overflow.
+
+https://stackoverflow.com/questions/27990828/django-detailview-show-related-record-of-another-model
+https://stackoverflow.com/questions/1517474/only-showing-year-in-django-admin-a-yearfield-instead-of-datefield
+https://stackoverflow.com/questions/849142/how-to-limit-the-maximum-value-of-a-numeric-field-in-a-django-model
+
 <sgd> Elaiza R. Bolislis, March 28, 2023