Update 'README.md'

2018-05-02 19:37:08 +00:00 · 2018-05-02 19:37:08 +00:00 · 66f2574dbc
--- a/README.md
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 | [greenlock-cluster](https://git.coolaj86.com/coolaj86/greenlock-cluster.js)
 |

-greenlock
+Greenlock&trade; for node.js
 =====
 (previously node-letsencrypt)