Mention funding options in the README and on the website

Author: jgonggrijp

README.md

@@ -26,4 +26,9 @@ https://github.com/documentcloud
 Many thanks to our contributors:
 https://github.com/jashkenas/underscore/contributors
 
+You can support the project by donating on
+[Patreon](https://patreon.com/juliangonggrijp).
+Enterprise coverage is available as part of the
+[Tidelift Subscription](https://tidelift.com/subscription/pkg/npm-underscore?utm_source=npm-underscore&utm_medium=referral&utm_campaign=enterprise).
+
 This project adheres to a [code of conduct](CODE_OF_CONDUCT.md). By participating, you are expected to uphold this code.

index.html

@@ -194,6 +194,8 @@
       <li>&raquo; <a href="docs/underscore-esm.html">Annotated Source (single read)</a></li>
       <li>&raquo; <a href="https://documentcloud.github.io/underscore-contrib/">Underscore-contrib</a></li>
       <li>&raquo; <a href="https://twitter.com/underscoredotjs">Twitter</a></li>
+      <li>&raquo; <a href="https://tidelift.com/subscription/pkg/npm-underscore?utm_source=npm-underscore&utm_medium=referral&utm_campaign=enterprise">Tidelift</a></li>
+      <li>&raquo; <a href="https://patreon.com/juliangonggrijp">Patreon</a></li>
     </ul>
 
     <input id="function_filter" placeholder="Filter" type="text" autofocus />
@@ -472,6 +474,14 @@
       channel.
     </p>
 
+    <p>
+      You can support the project by donating on
+      <a href="https://patreon.com/juliangonggrijp">Patreon</a>.
+      Enterprise coverage is available as part of the <a
+        href="https://tidelift.com/subscription/pkg/npm-underscore?utm_source=npm-underscore&utm_medium=referral&utm_campaign=enterprise"
+      >Tidelift Subscription</a>.
+    </p>
+
     <p>
       <i>Underscore is an open-source component of <a href="https://documentcloud.org/">DocumentCloud</a>.</i>
     </p>