Build static and use nginx instead of the full hugo server (#8)

This pull request will close #4

Hugo server needs about 800mb of memory just to do what nginx can with a way smaller requirements, so it makes sense to stop using `hugo` for serving statics

configs/nginx.conf

@@ -0,0 +1,13 @@
+server {
+       listen 80;
+       listen [::]:80;
+
+       server_name badhouseplants.com www.badhouseplants.com;
+
+       root /var/www;
+       index index.html; # Hugo generates HTML
+
+       location / {
+               try_files $uri $uri/ =404;
+       }
+}