docs: Moved RMWC to a complete foundation/adapter integration (#4376)

(cherry picked from commit 58dce89)

docs/framework-wrappers.md

@@ -6,7 +6,7 @@ Material Components for the web are architected to be adaptable to various major
   - [Material Web Components](https://github.com/material-components/material-components-web-components): MDC Web integration for Web Components (using [vanilla components](./integrating-into-frameworks.md#the-simple-approach-wrapping-mdc-web-vanilla-components))
   - Additional third-party integrations
     - [Preact Material Components](https://github.com/prateekbh/preact-material-components)
-    - [RMWC: React Material Web Components](https://github.com/jamesmfriedman/rmwc)
+    - [RMWC: React Material Web Components](https://github.com/jamesmfriedman/rmwc) (using [foundations/adapters](./integrating-into-frameworks.md#the-advanced-approach-using-foundations-and-adapters).)
     - [Angular MDC](https://github.com/trimox/angular-mdc-web)
     - [Blox Material](https://blox.src.zone/material): Angular Integration Library.
     - [Vue MDC Adapter](https://github.com/stasson/vue-mdc-adapter): MDC Web Integration for Vue.js (using [foundations/adapters](./integrating-into-frameworks.md#the-advanced-approach-using-foundations-and-adapters).)