add requirements file

Author: cifarquhar

requirments.md

@@ -0,0 +1,14 @@
+# Requirements
+
+This document lists the requirements of the "fun facts" website.
+
+- The page should have facts about each CYF host city
+- There should be **five** facts for each city
+- The facts should be presented in a bullet-point list
+- There should be a photo of each city
+- The position of the text and image should alternate for each city:
+  - **Row 1**: text left, image right
+  - **Row 2**: image left, text right
+  - **Row 3**: text left, image right
+  - etc
+- The Lighthouse accessibility score should be 100