diff --git a/mkdocs.yml b/mkdocs.yml
index bbeb52c4..2831b456 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -130,6 +130,7 @@ nav:
       - GitHub: "必学工具/GitHub.md"
       - "GNU Make": "必学工具/GNU_Make.md"
       - CMake: "必学工具/CMake.md"
+      - Markdown: "必学工具/markdown.md"
       - LaTeX: "必学工具/LaTeX.md"
       - Docker: "必学工具/Docker.md"
       - Scoop: "必学工具/Scoop.md"