Update README.md

Author: JLambertazzo

README.md

@@ -2,6 +2,7 @@
 MealPlanner is a web app made to help you plan meals, which helps save time and money.
 
 Try it **[here](https://the-meal-planner.herokuapp.com/)**  
+(Log in with username: example, password: password)  
 (Sign up disabled, set up locally using instructions below to try sign up)
 
 ## Set Up