fixing typo

[VRRmax]

comments in .erb is with <%# ... %>

[jakeNiemiec]

See: #1386 Sorry, my bad.

[VRRmax]

I don't understand why you use <%%= instead of <%#= which is the standard way for ERB commenting. That's the point of my PR, which is different than the ones you referred to me.
<%%= looks like a typo, and you will have PR again and again, people thinking you meant '<%=' by '<%%='.

Replacing '<%%=' by '<%#=' seems legit.

Please tell me if I have a misconception somewhere.

[VRRmax]

#1382 (comment)

[olleolleolle]

The %% is meant to be there, so that the output can be visible to the user reading it as %.

The output text is a JS comment to be read by the developer learning from the example.

Hope this helps explain why the %% is not a typo.