diff --git a/nesting.md b/nesting.md
index 34856c7..0861e58 100644
--- a/nesting.md
+++ b/nesting.md
@@ -6,6 +6,7 @@
 1. Create components for two sub sections
 1. Move the appropriate HTML to each sub section component
 1. Create a router just for the sub sections
+1. Replace the old main route with the new routing module
 
 ## Describe nested routes
 
@@ -51,7 +52,7 @@ import { CareerComponent } from '../career/career.component';
 
 const aboutRoutes: Routes = [
     {
-        path: 'about', //note the path for the main section
+        path: 'about',
         component: AboutComponent,
         children: [ //create the sub sections (children) for this route
             {
@@ -76,3 +77,44 @@ const aboutRoutes: Routes = [
 })
 export class AboutRoutingModule { }
 ```
+
+## Replace the old main route with the new routing module
+
+Remove the `about` route in `src/app/app-routing.module.ts`:
+
+```javascript
+const routes: Routes = [
+    {
+        path: 'resume/:id',
+        component: ResumeComponent
+    },
+    {
+        path: 'links',
+        component: LinksComponent
+    }
+];
+```
+
+And add the `about-routing.module.ts` module to `src/app/app.module.ts`:
+
+```javascript
+import { AboutRoutingModule} from './about/about-routing.module'
+
+@NgModule({
+    declarations: [
+        AppComponent,
+        AboutComponent,
+        LinksComponent,
+        ResumeComponent,
+        EarlyLifeComponent,
+        CareerComponent
+    ],
+    imports: [
+        BrowserModule,
+        AppRoutingModule,
+        AboutRoutingModule
+    ],
+    providers: [],
+    bootstrap: [AppComponent]
+})
+```
diff --git a/router/src/app/app-routing.module.ts b/router/src/app/app-routing.module.ts
index e7db1e1..fa4e9cc 100644
--- a/router/src/app/app-routing.module.ts
+++ b/router/src/app/app-routing.module.ts
@@ -6,10 +6,6 @@ import { LinksComponent } from './links/links.component';
 import { ResumeComponent } from './resume/resume.component';
 
 const routes: Routes = [
-    {
-        path: 'about',
-        component: AboutComponent
-    },
     {
         path: 'resume/:id',
         component: ResumeComponent
diff --git a/router/src/app/app.module.ts b/router/src/app/app.module.ts
index d23a44b..a028b6d 100644
--- a/router/src/app/app.module.ts
+++ b/router/src/app/app.module.ts
@@ -11,6 +11,8 @@ import { AppRoutingModule } from './app-routing.module';
 import { EarlyLifeComponent } from './early-life/early-life.component';
 import { CareerComponent } from './career/career.component'
 
+import { AboutRoutingModule} from './about/about-routing.module'
+
 @NgModule({
     declarations: [
         AppComponent,
@@ -22,7 +24,8 @@ import { CareerComponent } from './career/career.component'
     ],
     imports: [
         BrowserModule,
-        AppRoutingModule
+        AppRoutingModule,
+        AboutRoutingModule
     ],
     providers: [],
     bootstrap: [AppComponent]