Add external dependencies as peer dependencies

README.md

@@ -4,6 +4,17 @@ The Funkwhale design component library is a collection of reusable UI components
 
 Check out [the documentation](https://ui.funkwhale.audio) for information on how each component works and to see a live preview.
 
+## Dependencies
+
+This library depends on the following external packages:
+
+- [`vue`](https://www.npmjs.com/package/vue)
+- [`vue-router`](https://www.npmjs.com/package/vue-router)
+- [`vue-i18n`](https://www.npmjs.com/package/vue-i18n)
+- [`@vueuse/core`](https://www.npmjs.com/package/@vueuse/core)
+
+You must install these packages for all components to work correctly.
+
 ## Contribute to development
 
 This project welcomes contributions! To get started make sure you have the following: