2 files changed, 5 insertions, 3 deletions

diff --git a/404.html b/404.html
deleted file mode 100644
index 0423c04e..00000000
--- a/404.html
+++ /dev/null
@@ -1,3 +0,0 @@
-<h1>404</h1>
-<p>Page not found.</p>
-<p><a href="/">Back to home</a></p>
diff --git a/404.md b/404.md
new file mode 100644
index 00000000..0e7ee30c
--- /dev/null
+++ b/404.md
@@ -0,0 +1,5 @@
+# 404
+
+Page not found.
+
+[Back to home](/)