feat(client): ✨ add github flavored syntax and math equations to markdown support

client/components/shared/Markdown.tsx

@@ -1,6 +1,9 @@
 import clsx from 'clsx';
 import { isEmpty } from 'lodash';
 import ReactMarkdown from 'react-markdown';
+import rehypeKatex from 'rehype-katex';
+import remarkGfm from 'remark-gfm';
+import remarkMath from 'remark-math';
 
 type Props = {
   children?: string;
@@ -11,7 +14,11 @@ const Markdown: React.FC<Props> = ({ className, children }) => {
   if (!children || isEmpty(children)) return null;
 
   return (
-    <ReactMarkdown remarkPlugins={[]} className={clsx('markdown', className)}>
+    <ReactMarkdown
+      className={clsx('markdown', className)}
+      remarkPlugins={[remarkGfm, remarkMath]}
+      rehypePlugins={[rehypeKatex]}
+    >
       {children}
     </ReactMarkdown>
   );

client/package.json

@@ -51,7 +51,9 @@
     "redux-persist": "^6.0.0",
     "redux-saga": "^1.2.2",
     "redux-undo": "^1.0.1",
+    "rehype-katex": "^6.0.2",
     "remark-gfm": "^3.0.1",
+    "remark-math": "^5.1.1",
     "sharp": "^0.31.2",
     "uuid": "^9.0.0",
     "webfontloader": "^1.6.28"

client/styles/globals.scss

@@ -2,6 +2,9 @@
 @import url('https://fonts.googleapis.com/icon?family=Material+Icons');
 @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
 
+// KaTeX (for remark-math)
+@import url('https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.css');
+
 // Tailwind CSS
 @tailwind base;
 @tailwind components;
@@ -35,6 +38,10 @@
     ul li {
       @apply ml-4 list-outside;
     }
+
+    .footnotes p {
+      @apply inline;
+    }
   }
 }