Add Tidelift sponsorship link

[ci skip]

README.md

@@ -98,6 +98,13 @@ For example, if `performance.now()` returns 1000, it is guaranteed that the time
 
 On the other hand, `performance.timeOrigin` returns the *[Unix time][]* at which the `Performance` object is constructed and relies on the current time exposed through `Date.now()`. That means that it is susceptible to clock drifts that has occurred before the `Performance` object was constructed.
 
+## Supporting w3c-hr-time
+
+The jsdom project (including w3c-hr-time) is a community-driven project maintained by a team of [volunteers](https://github.com/orgs/jsdom/people). You could support us by:
+
+- [Getting professional support for w3c-hr-time](https://tidelift.com/subscription/pkg/npm-w3c-hr-time?utm_source=npm-w3c-hr-time&utm_medium=referral&utm_campaign=readme) as part of a Tidelift subscription. Tidelift helps making open source sustainable for us while giving teams assurances for maintenance, licensing, and security.
+- Contributing directly to the project.
+
 ## License
 
 This software is licensed under the MIT license. See LICENSE.md file for more detail.