Updating README

Author: Josh Wolff

.idea/workspace.xml

@@ -8,7 +8,7 @@ Using the Spontit API and Spontit app/webapp, you can send your own push notific
 1) Sign up at <a href="https://www.spontit.com" target="_blank">spontit.com</a> (you might need to click "Take me to the Desktop version."). Note down your username. It should be displayed in the top left.
 2) Get a secret key at <a href="https://www.spontit.com/secret_keys" target="_blank">spontit.com/secret_keys</a>. 
 3) Get the iPhone app or Android app. Sign in and allow notifications.
-4) `pip install spontit && pip install requests`
+4) `pip install spontit --upgrade && pip install requests`
 5) `from spontit import SpontitResource`
 6) `resource = SpontitResource(my_username, my_secret_key)`
 7) `response = resource.push("Hello!")`