diff --git a/docs/404.html b/docs/404.html
new file mode 100644
index 00000000..fb3f2dbb
--- /dev/null
+++ b/docs/404.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>Single Page Apps for GitHub Pages</title>
+    <script type="text/javascript">
+      // Single Page Apps for GitHub Pages
+      // MIT License
+      // https://github.com/rafgraph/spa-github-pages
+      // This script takes the current url and converts the path and query
+      // string into just a query string, and then redirects the browser
+      // to the new url with only a query string and hash fragment,
+      // e.g. https://www.foo.tld/one/two?a=b&c=d#qwe, becomes
+      // https://www.foo.tld/?/one/two&a=b~and~c=d#qwe
+      // Note: this 404.html file must be at least 512 bytes for it to work
+      // with Internet Explorer (it is currently > 512 bytes)
+
+      // If you're creating a Project Pages site and NOT using a custom domain,
+      // then set pathSegmentsToKeep to 1 (enterprise users may need to set it to > 1).
+      // This way the code will only replace the route part of the path, and not
+      // the real directory in which the app resides, for example:
+      // https://username.github.io/repo-name/one/two?a=b&c=d#qwe becomes
+      // https://username.github.io/repo-name/?/one/two&a=b~and~c=d#qwe
+      // Otherwise, leave pathSegmentsToKeep as 0.
+      var pathSegmentsToKeep = 0;
+
+      var l = window.location;
+      l.replace(
+        l.protocol + '//' + l.hostname + (l.port ? ':' + l.port : '') +
+        l.pathname.split('/').slice(0, 1 + pathSegmentsToKeep).join('/') + '/?/' +
+        l.pathname.slice(1).split('/').slice(pathSegmentsToKeep).join('/').replace(/&/g, '~and~') +
+        (l.search ? '&' + l.search.slice(1).replace(/&/g, '~and~') : '') +
+        l.hash
+      );
+
+    </script>
+  </head>
+  <body>
+  </body>
+</html>
\ No newline at end of file
diff --git a/docs/index.html b/docs/index.html
index f2e00cdf..2b76c813 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -9,6 +9,32 @@
     <meta name="viewport"
         content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
     <link rel="icon" href="favicon.ico">
+
+    <!-- Start Single Page Apps for GitHub Pages -->
+    <script type="text/javascript">
+        // Single Page Apps for GitHub Pages
+        // MIT License
+        // https://github.com/rafgraph/spa-github-pages
+        // This script checks to see if a redirect is present in the query string,
+        // converts it back into the correct url and adds it to the
+        // browser's history using window.history.replaceState(...),
+        // which won't cause the browser to attempt to load the new url.
+        // When the single page app is loaded further down in this file,
+        // the correct url will be waiting in the browser's history for
+        // the single page app to route accordingly.
+        (function(l) {
+            if (l.search[1] === '/' ) {
+            var decoded = l.search.slice(1).split('&').map(function(s) { 
+                return s.replace(/~and~/g, '&')
+            }).join('?');
+            window.history.replaceState(null, null,
+                l.pathname.slice(0, -1) + decoded + l.hash
+            );
+            }
+        }(window.location))
+        </script>
+        <!-- End Single Page Apps for GitHub Pages -->
+
     <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify/themes/buble.css" />
 <!--    <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify/lib/themes/buble.css">-->
     <link rel="stylesheet" href="https://unpkg.com/docsify-toc@1.0.0/dist/toc.css">
