Support GFM using `remarked` and fix some bugs

- This avoids edge cases in the primitive parser I wrote.
- Add KaTeX stylesheet (cause of rendering issues, not Pronto).
- Bundle with Webpack.

1 files changed, 21 insertions, 37 deletions

diff --git a/README.md b/README.md
index a01f1bf..b84af51 100644
--- a/README.md
+++ b/README.md
@@ -2,45 +2,41 @@
 
 # ASAP
 
-A browser extension that adds LaTeX and code support to Pronto.
+A Web extension that adds Markdown and LaTeX support to Pronto.
 
 To bundle the extension, run `nix build` in the root of this repository.  The
-result will be available at `result/asap.zip`.
+result and dependency licenses will appear at `result/asap.zip` and
+`result/licenses.txt`.
 
 ## Guide
 
-`\(`, `\[`, `$`, `$$` and the `equation`, `align`, `alignat`, `gather`, `CD`
-environments invoke KaTeX.  For example,
+[GFM](https://github.github.com/gfm) is supported.
+
+A pair of `$` invokes KaTeX inline and a pair of `$$` invokes KaTeX inline or in
+display mode (depending on whether the two `$$` each have their own line).  For
+example,
 
 ```tex
-This is text and \(\pi \in \mathbb R\).
-\begin{align}
+This is text and $\pi \in \mathbb R$. Also, $$1 + 1 = 2$$.
+$$
+\begin{align*}
 \sum_{n = 1}^{10} n & = \frac{10 \cdot 11} 2 \\
 & = 55
-\end{align}
+\end{align*}
+$$
 ```
 
-Code blocks are delimited by pairs of ```` ``` ````.
+A code block with `math` as the language also invokes display mode:
 
 ````md
-```
-let x = "What language is this?";
-```
-````
-
-Highlight.js guesses the language, but you can also specify it after the first
-```` ``` ````:
-
-````md
-```bash
-echo 'I know this one!'
+```math
+\begin{align}
+& x + y = x \nonumber \\
+\implies & y = 0
+\end{align}
 ```
 ````
 
-Inline code is delimited by pairs of `` ` `` (e.g., `` `x = 2` ``).  Syntax
-highlighting still occurs.  The language can be specified like so: `` `import
-math`{:.python}``.
-
 ## Development
 
 The extension can be tested by [temporarily installing it in
@@ -49,17 +45,5 @@ Chromium-based browsers](chrome://extensions).
 
 ## License
 
-All the files in this repository except `licenses/`, `hljs/`, `katex/` and
-`STIXTwoMath-Regular.otf` are licensed under the GNU General Public License v2.0
-only.  A copy of the GNU General Public License v2.0 is available in this
-repository at `licenses/GPL-2.0`.
-
-`hljs/` is licensed under the 3-Clause BSD License.  A copy of the 3-Clause BSD
-License is available in this repository at `licenses/HIGHLIGHT-JS-BSD-3-CLAUSE`.
-
-`katex/` is licensed under the MIT License.  A copy of the MIT License is
-available in this repository at `licenses/KATEX-MIT`.
-
-`STIXTwoMath-Regular.otf` is licensed under the SIL Open Font License.  A copy
-of the SIL Open Font License is available in this repository at
-`licenses/STIX-OFL`.
+The files in this repository (except `COPYING`) are licensed under the GNU
+General Public License v2.0 only, a copy of which exists in `COPYING`.