feat(create-app): add tech-docs plugin

packages/create-app/templates/default-app/packages/app/package.json.hbs

@@ -16,6 +16,7 @@
     "@backstage/plugin-lighthouse": "^{{version}}",
     "@backstage/plugin-tech-radar": "^{{version}}",
     "@backstage/plugin-github-actions": "^{{version}}",
+    "@backstage/plugin-techdocs": "^{{version}}",
     "@backstage/plugin-sentry": "^{{version}}",
     "@backstage/test-utils": "^{{version}}",
     "@backstage/theme": "^{{version}}",

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

@@ -6,6 +6,7 @@ import ExploreIcon from '@material-ui/icons/Explore';
 import BuildIcon from '@material-ui/icons/BuildRounded';
 import RuleIcon from '@material-ui/icons/AssignmentTurnedIn';
 import MapIcon from '@material-ui/icons/MyLocation';
+
 import {
   Sidebar,
   SidebarItem,
@@ -22,9 +23,9 @@ export const AppSidebar = () => (
     <SidebarDivider />
     {/* Global nav, not org-specific */}
     <SidebarItem icon={HomeIcon} to="./" text="Home" />
+    <SidebarItem icon={ExploreIcon} to="explore" text="Explore" />
     <SidebarItem icon={LibraryBooks} to="/docs" text="Docs" />
     <SidebarItem icon={CreateComponentIcon} to="create" text="Create..." />
-    <SidebarItem icon={ExploreIcon} to="explore" text="Explore" />
     <SidebarDivider />
     <SidebarItem icon={MapIcon} to="tech-radar" text="Tech Radar" />
     <SidebarItem icon={RuleIcon} to="lighthouse" text="Lighthouse" />