Updated polyfills (#1237)

Author: mfreed7

site/src/pages/components/interest-invokers.explainer.mdx

@@ -429,10 +429,8 @@ A basic polyfill has been written, which implements the behaviors described by t
 
 The polyfill is available at Github and npm:
 
-- https://github.com/mfreed7/interesttarget
-- https://www.npmjs.com/package/interesttarget
-
-Note: these will be updated soon to rename "interesttarget" to "interestfor".
+- https://github.com/mfreed7/interestfor
+- https://www.npmjs.com/package/interestfor
 
 Patches are welcome!