fix: add sample env

sample.env

@@ -0,0 +1,24 @@
+COMPOSE_PROJECT_NAME=freecodecamp
+MONGOHQ_URL='mongodb://localhost:27017/freecodecamp'
+
+ROLLBAR_APP_ID='my-rollbar-app-id'
+
+AUTH0_CLIENT_ID=stuff
+AUTH0_CLIENT_SECRET=stuff
+AUTH0_DOMAIN=stuff
+
+SESSION_SECRET=secretstuff
+COOKIE_SECRET='this is a secret'
+JWT_SECRET='a very long secret'
+
+STRIPE_PUBLIC=pk_from_stipe_dashboard
+STRIPE_SECRET=sk_from_stipe_dashboard
+
+LOCAL_AUTH=true
+PEER=stuff
+DEBUG=true
+
+IMAGE_BASE_URL='https://s3.amazonaws.com/freecodecamp/images/'
+
+HOME_LOCATION='http://localhost:8000'
+API_LOCATION='http://localhost:3000'