In my humble opinion, users should not have to search the internet high and low to find documentation and samples of Power BI custom visuals (Microsoft, please take note). There should be links to them in the Power BI Custom Visuals Marketplace. I mean seriously, how hard is it to add links to the developer's documentation page right there?
Oh, and the "Frequently asked questions" link in the Power BI Marketplace for *any* custom visual takes you to a page that has NOTHING to do with Power BI
Don't get me wrong. I'm glad I found this post becaus it has a link to the documentation that I need.