Bargraph Module Documentation not accurate

[nhasian]

On the page for the Bargraph module, the documentation shows the configuration for Spotify. Additionally, the image to the screenshot is broken. "baargraph screenshot" is misspelled and should be "bargraph screenshot" I would have fixed it myself, but I don't think I can like a traditional wiki.

[Seanstoppable]

PR wtfutil/wtfdocs#170

[stale]

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