feat: introduce testing script

I noticed there was a scratch file in `.gitignore`

I wrote this to test out #41,
and figured it'd be worth sharing within source control!

Author: kevin-david

.env.example

@@ -0,0 +1,4 @@
+# Snoo Account Credentials
+# Replace with your actual Snoo account details & copy to .env
+SNOO_EMAIL=your_email@example.com
+SNOO_PASSWORD=your_password

.gitignore

@@ -5,3 +5,8 @@ venv
 *.pyc
 .coverage
 testing.py # My scratch file.
+
+# Environment variables
+.env
+.env.local
+.env.*.local