Fix rendering of code with <hlcode>
Markdown generated for did not conform to the Commonmark spec and was not compatible with marked 0.6+.
Fixes arsnova#101 (closed). Fixes GH-89.
Markdown generated for did not conform to the Commonmark spec and was not compatible with marked 0.6+.
Fixes arsnova#101 (closed). Fixes GH-89.