add acme-challenge config

ubuntu/deirdre.asininetech.net.yml

@@ -14,6 +14,10 @@
         - listen *:80
         - listen [::]:80
         - server_name munin.tenforward.social
+        - location /.well-known/acme-challenge/ {
+            root /var/www/html;
+            allow all;
+          }
         - return 301 "https://$host$request_uri"
       munin.tenforward.social.https:
         - listen *:443 ssl http2