adding placeholder file so GitHub will recognise the new folder

chrisdavidmills · chrisdavidmills · commit 4ffce0cf93d2 · 2017-10-04T13:42:39.000+01:00
diff --git a/flexbox/index.html b/flexbox/index.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>My test page</title>
+  </head>
+  <body>
+    <p>This is my page</p>
+  </body>
+</html>
