feat: revert Blackfriday math workaround + improve Mmark support

Guidance for using math going forward:
- add `markup: mmark` to front matter
- no longer need to escape inline or block math in body

Also, fix Mmark task lists by removing bullet points.

assets/js/academic.js

@@ -404,6 +404,9 @@
     $('#TableOfContents li').addClass('nav-item');
     $('#TableOfContents li a').addClass('nav-link');
 
+    // Fix Mmark task lists (remove bullet points).
+    $("input[type='checkbox'][disabled]").parents('ul').addClass('task-list');
+
     // Fix Mermaid.js clash with Highlight.js.
     let mermaids = [];
     [].push.apply(mermaids, document.getElementsByClassName('language-mermaid'));
@@ -472,10 +475,6 @@
     // Re-initialize Scrollspy with dynamic navbar height offset.
     fixScrollspy();
 
-    // Fix inline math (workaround lack of Mathjax support in Blackfriday).
-    // Note `.MathJax_Preview` won't exist until after Mathjax has parsed the page, so call on page *load*.
-    $('.MathJax_Preview').unwrap('code');
-
     if (window.location.hash) {
       // When accessing homepage from another page and `#top` hash is set, show top of page (no hash).
       if (window.location.hash == "#top") {

exampleSite/content/post/writing.md

@@ -3,6 +3,7 @@ title: Writing technical content in Academic
 date: 2019-07-12
 math: true
 diagram: true
+markup: mmark
 ---
 
 Academic is designed to give technical content creators a seamless experience. You can focus on the content and Academic handles the rest.
@@ -33,36 +34,24 @@ data.head()
 
 ### Math
 
-Academic supports a Markdown extension for $\LaTeX$ math. You can enable this feature by toggling the `math` option in your `config/_default/params.toml` file or by adding `math: true` to your page front matter.
+Academic supports a Markdown extension for $\LaTeX$ math. You can enable this feature by toggling the `math` option in your `config/_default/params.toml` file and adding `markup: mmark` to your page front matter.
 
-To render a math *block*, wrap your LaTeX math with
-
-    <div>$$...$$</div>
-    
-whereas to render *inline* math, wrap your LaTeX math with backticks
-
-    `$...$`
-    
-otherwise your math will be parsed as Markdown.
+To render *inline* or *block* math, wrap your LaTeX math with `$$...$$`.
 
 Example math block:
 
-```html
-<div>$$
-\gamma_{n} = \frac{ 
+```tex
+$$\gamma_{n} = \frac{ 
 \left | \left (\mathbf x_{n} - \mathbf x_{n-1} \right )^T 
 \left [\nabla F (\mathbf x_{n}) - \nabla F (\mathbf x_{n-1}) \right ] \right |}
-{\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2}
-$$</div>
+{\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2}$$
 ```
 
 renders as
 
-<div>
 $$\gamma_{n} = \frac{ \left | \left (\mathbf x_{n} - \mathbf x_{n-1} \right )^T \left [\nabla F (\mathbf x_{n}) - \nabla F (\mathbf x_{n-1}) \right ] \right |}{\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2}$$
-</div>
 
-Example inline math `\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2` renders as `$\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2$`.
+Example inline math `$$\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2$$` renders as $$\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2$$ .
 
 ### Diagrams
 
@@ -180,4 +169,14 @@ renders as
 | Content Cell  | Content Cell  |
 | Content Cell  | Content Cell  |
 
+### Asides
+
+```markdown
+A> A Markdown aside is equivalent to using the Alert Shortcode, but simpler to use.
+```
+
+renders as
+
+A> A Markdown aside is equivalent to using the Alert Shortcode, but simpler to use.
+
 ### Did you find this page helpful? Consider sharing it 🙌