This extra README config got lost.

Author: jalada

README.md

@@ -45,6 +45,21 @@ Rails.application.configure do
 end
 ```
 
+If you have configured your app to enforce SSL with the configuration option
+`config.force_ssl = true` you will need to insert the middleware in front of
+the middleware performing that enforcement instead, as LetsEncrypt do not allow
+redirects on their verification requests:
+
+```ruby
+Rails.application.configure do
+  # <...>
+  
+  config.middleware.insert_before ActionDispatch::SSL, Letsencrypt::Middleware
+
+  # <...>
+end
+```
+
 ## Configuring
 
 By default the gem will try to use the following set of configuration variables,