README.md in acme-client-0.2.0 vs README.md in acme-client-0.2.1

@@ -13,10 +13,10 @@
 # We're going to need a private key.
 require 'openssl'
 private_key = OpenSSL::PKey::RSA.new(2048)
 
 # We need an ACME server to talk to, see github.com/letsencrypt/boulder
-endpoint = 'https://acme-staging.api.letsencrypt.org'
+endpoint = 'https://acme-v01.api.letsencrypt.org/'
 
 # Initialize the client
 require 'acme-client'
 client = Acme::Client.new(private_key: private_key, endpoint: endpoint)