diff --git a/book/_toc.yml b/book/_toc.yml
index db028c5..073f51f 100644
--- a/book/_toc.yml
+++ b/book/_toc.yml
@@ -104,7 +104,6 @@ parts:
     - file: tools/figmaker
     - file: helper_code/intro.md
       sections:
-      - file: external/latex-to-markdown-conversion/README.md
       - file: external/Useful_python_code/snippit.ipynb
       - file: external/Useful_python_code/extensionfildownloadreturn.ipynb
       - file: external/Useful_python_code/figshrinker.ipynb