docs: Add new Users : rtnF md (#2557)

Update AUTHORS.md

Author: altilunium

docs/AUTHORS.md

@@ -200,6 +200,7 @@ Users are anyone using Marked in some fashion, without them, there's no reason f
 |Individual or Organization |Website                 |Project                              |Submitted by                                        |
 |:--------------------------|:-----------------------|:------------------------------------|:---------------------------------------------------|
 |MarkedJS                   |https://marked.js.org   |https://github.com/markedjs/marked   |The marked committers                               |
+|Altilunium                 |https://md.altilunium.my.id|https://github.com/altilunium/md  |Altilunium                                          |
 
 To be listed: All fields are optional. Contact any of the committers or, more timely, submit a pull request with the following (using the first row as an example):