chore(techdocs): use addons with create app

Signed-off-by: Camila Belo <camilaibs@gmail.com>

packages/create-app/templates/default-app/packages/app/src/App.tsx

@@ -19,6 +19,8 @@ import {
   techdocsPlugin,
   TechDocsReaderPage,
 } from '@backstage/plugin-techdocs';
+import { TechDocsAddons } from '@backstage/plugin-techdocs-react/alpha';
+import { ReportIssue } from '@backstage/plugin-techdocs-module-addons-contrib';
 import { UserSettingsPage } from '@backstage/plugin-user-settings';
 import { apis } from './apis';
 import { entityPage } from './components/catalog/EntityPage';
@@ -68,7 +70,11 @@ const routes = (
     <Route
       path="/docs/:namespace/:kind/:name/*"
       element={<TechDocsReaderPage />}
-    />
+    >
+      <TechDocsAddons>
+        <ReportIssue />
+      </TechDocsAddons>
+    </Route>
     <Route path="/create" element={<ScaffolderPage />} />
     <Route path="/api-docs" element={<ApiExplorerPage />} />
     <Route