Equation numbering support

[PengjuYan]

As we know, MacDown can render math equations by MathJax. However, numbering of equations is not supported by default.

One hack way suggested by TP is to add the following code at the beginning of the Markdown document:

<script type="text/x-mathjax-config">
MathJax.Hub.Config({
  TeX: { equationNumbers: { autoNumber: "AMS" } }
});
</script>

But it's better if we can configure that in the preference pane.

[nehalecky]

+1, would be awesome.

[nicholaelaw]

Same thought here, Sublime Text + Markdown preview supports it, but that combination is borked in its own way.

[RoyiAvital]

That would be great.

[aportelli]

+1, that would be really useful

[raiyan]

This simple addition could make MacDown a serious writing tool even for science and math writers.

[saulspatz]

+1

[pjhjohn]

+1

[bradyrx]

Another vote in favor of this.

[MinhMPA]

+1 in 2021...