1 files changed, 5 insertions, 0 deletions
diff --git a/README b/README
index 8c8e8c957..f13e378ce 100644
--- a/README
+++ b/README
@@ -2790,6 +2790,11 @@ in several respects:
     we must either disallow lazy wrapping or require a blank line between
     list items.
 
+#### Extension: `shortcut_reference_links` ####
+
+Allows to use shortcut reference links: `[foo]` instead of `[foo][]`. Writer
+would shortcut links unless doing so might cause problems.
+
 Markdown variants
 -----------------