Merge pull request #1850 from gravitl/bugfix_caddy_certs

Use ZeroSSL as default certificate provider for caddy

docker/Caddyfile

@@ -1,5 +1,6 @@
 {
-        # LetsEncrypt account
+        # ZeroSSL account
+        acme_ca https://acme.zerossl.com/v2/DV90
         email YOUR_EMAIL
 }