content(resources): add link to GitHub

src/pages/resources.tsx

@@ -1,5 +1,6 @@
 import React, { Fragment } from "react"
 
+import packageJson from "../../package.json"
 import { ResourcesLink } from "../components/ResourcesLink"
 import { ResourcesList } from "../components/ResourcesList"
 import { SEO } from "../components/SEO"
@@ -14,6 +15,10 @@ function ResourcesPage() {
         on our Discord community,{" "}
         <ResourcesLink to="/about">The Programmer's Hangout</ResourcesLink>.
       </p>
+      <p>
+        All of it is open source, and you can contribute to it on{" "}
+        <ResourcesLink to={packageJson.repository.url}>GitHub</ResourcesLink>.
+      </p>
       <ResourcesList />
     </Fragment>
   )