diff --git a/README.md b/README.md
index 2b509ac..590e2c9 100644
--- a/README.md
+++ b/README.md
@@ -27,3 +27,8 @@ If you want to run your own static site with this content, here is the short ver
 ```
 
 You can serve this content with any HTTP file server, such as Nginx or even `http.server.HTTPServer`.
+
+Necessary extensions to render this site, beyond what's in incorporeal-cms:
+
+* pymdown-extensions
+* markdown-grid-tables
diff --git a/extensions.txt b/extensions.txt
deleted file mode 100644
index 61f53a6..0000000
--- a/extensions.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Necessary extensions to render this site:
-
-pymdown-extensions
-markdown-grid-tables