Add sitemap to wpcarro.dev

- Create ./website directory
- Add a sitemap to wpcarro.dev
- Move covid-uk directory to sandbox directory

TODO: Next sandbox, blog, and learn in the website directory

sandbox/covid-uk/styles.css

@@ -0,0 +1,28 @@
+@tailwind base;
+
+body {
+  @apply font-mono;
+}
+
+h1 {
+  @apply text-3xl mb-5 font-bold;
+}
+
+h2 {
+  @apply text-2xl mb-5 font-bold;
+}
+
+h3 {
+  @apply text-xl mb-5 font-bold;
+}
+
+a {
+  @apply text-blue-600 underline;
+}
+
+p {
+  @apply mt-2 mb-5;
+}
+
+@tailwind components;
+@tailwind utilities;