Add documentation for Inline Diff

Signed-off-by: Rémy Coutable <remy@rymai.me>

1 files changed, 14 insertions, 0 deletions

diff --git a/doc/markdown/markdown.md b/doc/markdown/markdown.md
index 4f199b6af6f..b0c6d6a4bbf 100644
--- a/doc/markdown/markdown.md
+++ b/doc/markdown/markdown.md
@@ -8,6 +8,7 @@
 * [Multiple underscores in words](#multiple-underscores-in-words)
 * [URL auto-linking](#url-auto-linking)
 * [Code and Syntax Highlighting](#code-and-syntax-highlighting)
+* [Inline Diff](#inline-diff)
 * [Emoji](#emoji)
 * [Special GitLab references](#special-gitlab-references)
 * [Task lists](#task-lists)
@@ -153,6 +154,19 @@ s = "There is no highlighting for this."
 But let's throw in a <b>tag</b>.
 ```
 
+## Inline Diff
+
+With inline diffs tags you can display {+ additions +} or [- deletions -].
+
+The wrapping tags can be either curly braces or square brackets [+ additions +] or {- deletions -}.
+
+However the wrapping tags cannot be mixed as such:
+
+- {+ additions +]
+- [+ additions +}
+- {- deletions -]
+- [- deletions -}
+
 ## Emoji
 
 	Sometimes you want to :monkey: around a bit and add some :star2: to your :speech_balloon:. Well we have a gift for you: