I added additional info to "Supercharging our example website" as number 3 to instruct users to, "Rename this image 'firefox2.png' (without quotes)" because that can be needed in order for the code to work.
W/in the 'Hello World' tutorial in number 1, instructions state to create the main.js file into scripts folder w/in test website. No scripts folder exists w/in that test website. So, I added instructions for users to first create the 'scripts' folder.
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