Add enterprise language

Author: phated

README.md

@@ -50,9 +50,13 @@ check(6) //true
 ---
 License: BSD-2-Clause
 
-[Get supported nth-check with the Tidelift Subscription](https://tidelift.com/subscription/pkg/npm-nth-check?utm_source=npm-nth-check&utm_medium=referral&utm_campaign=readme)
-
 ## Security contact information
 
 To report a security vulnerability, please use the [Tidelift security contact](https://tidelift.com/security).
 Tidelift will coordinate the fix and disclosure.
+
+## `nth-check` for enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of `nth-check` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-nth-check?utm_source=npm-nth-check&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)