Add motivation for package

PythonCoderAS · web-flow · commit cc0e844e4efe · 2021-12-17T20:35:58.000-05:00
diff --git a/README.md b/README.md
@@ -1,2 +1,6 @@
 # array-string-map
 A map that encodes all array items into a string format, so that arrays work like tuples in Python when used for a map.
+
+## Motivation
+
+I was using a Map to store array values, and I kept on running into a bug where I could not get those values back. I got fed up, and then after some Googling, realized that array lookups will not work when two different arrays with the same elements are used (such as when I use array literal syntax to create them). My solution was to encode the values as string keys.
