diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 6794236..af12ea6 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -15,3 +15,4 @@ BOOK DESCRIPTION
 
 * If book is free, add it after free books of that category and also add `*Free*` after book url.
 * Add other books in ascending date order (newest last). Books without date go at the end of the list in that category.
+* To keep track of the huge table of contents you can use a plugin like [Markdown VSCode plugin](https://marketplace.visualstudio.com/items?itemName=yzhang.markdown-all-in-one)