diff --git a/data/page_sharer.toml b/data/page_sharer.toml
index 6cfc5219..e0e5aad3 100644
--- a/data/page_sharer.toml
+++ b/data/page_sharer.toml
@@ -1,3 +1,6 @@
+# Page Sharer
+# Documentation: https://sourcethemes.com/academic/docs/customization/#page-sharer
+
 [[buttons]]
   id = "twitter"
   url = "https://twitter.com/intent/tweet?url={url}&text={title}"