diff --git a/README.md b/README.md
index f417226..77b2f10 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,6 @@ File in the extended format should follow the specification:
 <!-- Parent: <parent 1> -->
 <!-- Parent: <parent 2> -->
 <!-- Title: <title> -->
-<!-- Emoji: 🚀 -->
 <!-- Attachment: <local path> -->
 <!-- Label: <label 1> -->
 <!-- Label: <label 2> -->
@@ -70,6 +69,12 @@ Also, optional following headers are supported:
 
 Setting the sidebar creates a column on the right side.  You're able to add any valid HTML content. Adding this property sets the layout to `article`.
 
+```markdown
+<!-- Emoji: 🚀 -->
+```
+
+You can set a page emoji icon by specifying the icon in the headers.
+
 Mark supports Go templates, which can be included into article by using path
 to the template relative to current working dir, e.g.: