Update README

README.md

@@ -10,15 +10,16 @@ UW Material UI React is a preconfigured UW-Madison theme for use with
 ```jsx
 import React from "react";
 import ReactDOM from "react-dom";
+import { createMuiTheme } from "@material-ui/core/styles";
 import { ThemeProvider } from "@material-ui/styles";
 import Button from "@material-ui/core/Button";
-import createTheme from "uw-material-ui-react";
+import theme from "uw-material-ui-react";
 
-const theme = createTheme();
+const uwMadison = createMuiTheme(theme);
 
 function App(props) {
   return (
-    <ThemeProvider theme={theme}>
+    <ThemeProvider theme={uwMadison}>
       <Button>{props.text}</Button>
     </ThemeProvider>
   );