feat: sub+sup+imsize markdown renderers

server/modules/rendering/markdown-supsub/definition.yml

@@ -0,0 +1,18 @@
+key: markdownSupsub
+title: Subscript/Superscript
+description: Parse subscript and superscript tags
+author: requarks.io
+icon: format_size
+enabledDefault: true
+dependsOn: markdownCore
+props:
+  subEnabled:
+    type: Boolean
+    title: Subscript
+    hint: Enable subscript tags
+    default: true
+  supEnabled:
+    type: Boolean
+    title: Supercript
+    hint: Enable supercript tags
+    default: true

server/modules/rendering/markdown-supsub/renderer.js

@@ -0,0 +1,17 @@
+const mdSub = require('markdown-it-sub')
+const mdSup = require('markdown-it-sup')
+
+// ------------------------------------
+// Markdown - Subscript / Superscript
+// ------------------------------------
+
+module.exports = {
+  init (md, conf) {
+    if (conf.subEnabled) {
+      md.use(mdSub)
+    }
+    if (conf.supEnabled) {
+      md.use(mdSup)
+    }
+  }
+}