Update 'README.md'

2018-07-10 19:52:06 +00:00 · 2018-07-10 19:52:06 +00:00 · f34332b5a6
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 # rsa-compat.js
+!["Lifetime Downloads"](https://img.shields.io/npm/dt/greenlock.svg "Lifetime Download Count can't be shown")
+!["Monthly Downloads"](https://img.shields.io/npm/dm/greenlock.svg "Monthly Download Count can't be shown")
+!["Weekly Downloads"](https://img.shields.io/npm/dw/greenlock.svg "Weekly Download Count can't be shown")

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