Newlines between attributes break HTML block detection #287
Description
The following HTML block is not detected as HTML in a .md file:
<img src="Documentation/Images/BasicHypergraphPlot.png"
width="478"
alt="Out[] = ... a plot showing 3 triangles connected at vertices labeled 2 and 4 ...">
It is detected as normal text data.
When newlines are removed, this block is correctly detected as HTML:
<img src="Documentation/Images/BasicHypergraphPlot.png" width="478" alt="Out[] = ... a plot showing 3 triangles connected at vertices labeled 2 and 4 ...">
Newlines between attributes should be ok.