Support \minuso (#2213)

* Support \minuso

* Update screenshots

* Add MathML version

* Add BIN spacing

* Update screenshots

* Add Unicode character

* Delete duplicate macro

Co-authored-by: Erik Demaine <edemaine@mit.edu>

docs/support_table.md

@@ -669,6 +669,7 @@ use `\ce` instead|
 |\mid|$\{x∈ℝ\mid x>0\}$|`\{x∈ℝ\mid x>0\}`|
 |\middle|$P\left(A\middle\vert B\right)$|`P\left(A\middle\vert B\right)`|
 |\min|$\min$||
+|\minuso|$\minuso$||
 |\mit|<span style="color:firebrick;">Not supported</span>|See `\mathit`|
 |\mkern|$a\mkern18mu b$|`a\mkern18mu b`|
 |\mmlToken|<span style="color:firebrick;">Not supported</span>||

docs/supported.md

@@ -632,9 +632,9 @@ In cases where KaTeX fonts do not have a bold glyph, `\pmb` can simulate one. Fo
 |$\circledR$ `\circledR`|$\diamondsuit$ `\diamondsuit`|$\heartsuit$ `\heartsuit`
 |$\text{\textregistered}$ `\text{\textregistered}`|$\diamonds$ `\diamonds`|$\hearts$ `\hearts`
 |$\circledS$ `\circledS`|$\spadesuit$ `\spadesuit`|$\spades$ `\spades`
-|$\text{\textcircled a}$ `\text{\textcircled a}`|$\maltese$ `\maltese`||
+|$\text{\textcircled a}$ `\text{\textcircled a}`|$\maltese$ `\maltese`|$\minuso$ `\minuso`|
 
-Direct Input: $£ ¥ ∇ ∞ · ∠ ∡ ∢ ♠ ♡ ♢ ♣ ♭ ♮ ♯ ✓ …  ⋮  ⋯  ⋱  !$ ‼
+Direct Input: $£ ¥ ∇ ∞ · ∠ ∡ ∢ ♠ ♡ ♢ ♣ ♭ ♮ ♯ ✓ …  ⋮  ⋯  ⋱  !$ ‼ ⦵
 
 ## Units