From 72fcc3d7ad42bdf25854221ccedf2c81a190d188 Mon Sep 17 00:00:00 2001
From: Micah Moegelin <mmoegelin@users.noreply.github.com>
Date: Wed, 3 Apr 2019 02:04:46 -0700
Subject: [PATCH] Added GitHub Mastering Markdown guide link (#28379)

---
 guide/english/developer-tools/markdown/index.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/guide/english/developer-tools/markdown/index.md b/guide/english/developer-tools/markdown/index.md
index 8e727c34e2..34bfe9853e 100644
--- a/guide/english/developer-tools/markdown/index.md
+++ b/guide/english/developer-tools/markdown/index.md
@@ -57,3 +57,5 @@ A cheatsheet is one of the easiest way to learn Markdown. Check out <a href='htt
 You can also check out this online tutorial: <a href='https://www.markdowntutorial.com' target='_blank' rel='nofollow'>Markdown Tutorial</a>
 
 Love learning by videos? Check out <a href='https://www.youtube.com/watch?v=HndN6P9ke6U' target='_blank' rel='nofollow'>this Youtube video</a>
+
+The GitHub <a href='https://guides.github.com/features/mastering-markdown/' target='_blank'>Mastering Markdown</a> guide provides an introduction to Markdown, gives examples, and notes some additional features in the version used on GitHub.