Merge pull request #232473 from cynthn/patch-61

[Doc-a-thon] Use sed instead of nano

Author: prmerger-automator[bot]

articles/app-service/quickstart-html.md

@@ -96,11 +96,11 @@ The page is running as an Azure App Service web app.
 
 ## Update and redeploy the app
 
-In the Cloud Shell, type `nano index.html` to open the nano text editor. In the `<h1>` heading tag, change "Azure App Service - Sample Static HTML Site" to "Azure App Service", as shown below.
+In the Cloud Shell, use `sed` to change "Azure App Service - Sample Static HTML Site" to "Azure App Service".
 
-![Nano index.html](media/quickstart-html/nano-index-html.png)
-
-Save your changes and exit nano. Use the command `^O` to save and `^X` to exit.
+```bash
+sed  -i 's/Azure App Service - Sample Static HTML Site/Azure App Service/' index.html
+```
 
 You'll now redeploy the app with the same `az webapp up` command.