Add acme.httpChallenge.delay option

docs/content/https/acme.md

@@ -250,6 +250,34 @@ when using the `HTTP-01` challenge, `certificatesresolvers.myresolver.acme.httpc
 !!! info ""
     Redirection is fully compatible with the `HTTP-01` challenge.
 
+#### `Delay`
+
+The delay between the creation of the challenge and the validation.
+A value lower than or equal to zero means no delay.
+
+```yaml tab="File (YAML)"
+certificatesResolvers:
+  myresolver:
+    acme:
+      # ...
+      httpChallenge:
+        # ...
+        delay: 12
+```
+
+```toml tab="File (TOML)"
+[certificatesResolvers.myresolver.acme]
+  # ...
+  [certificatesResolvers.myresolver.acme.httpChallenge]
+    # ...
+    delay = 12
+```
+
+```bash tab="CLI"
+# ...
+--certificatesresolvers.myresolver.acme.httpchallenge.delay=12
+```
+
 ### `dnsChallenge`
 
 Use the `DNS-01` challenge to generate and renew ACME certificates by provisioning a DNS record.