diff --git a/src/utils/misc.ts b/src/utils/misc.ts
index dd23171..8a24cbc 100644
--- a/src/utils/misc.ts
+++ b/src/utils/misc.ts
@@ -103,6 +103,11 @@ export const cleanCodeBlock = (text: string) => {
   return text;
 };
 
+/**
+ * Returns the emoji URL as png, only works with one-composed emoji code
+ * @param emoji Emoji
+ * @returns URL of emoji as png
+ */
 export const emojiPng = (emoji: string) =>
   `https://cdn.jsdelivr.net/gh/twitter/twemoji/assets/72x72/${emoji
     .codePointAt(0)