readme now with markdown headers

README.md

@@ -49,7 +49,7 @@ NB: The command is **npx** and it means run the webpack program that's in the no
 
 By default webpack uses the webpack.config.js file to figure out what the "entry" point of the code is (src/hello.js), and where to put the output. 
 
-Look at hello.html (which uses dist/bundle.js).
+Open [hello.html](hello.html) with your browser (NB: it uses the *hopefully* correctly generated output file dist/bundle.js).
 
 **Each time you change src/hello.js you need to run npx webpack to rebundle/rebuild the output.**