a11y-remove alt text for decorative image (#7836)

* remove alt text for decorative image

* mark images as decorative

---------

Co-authored-by: katiegoines <[email protected]>

Author: katieklein

src/pages/[platform]/build-a-backend/storage/use-with-custom-s3/index.mdx

@@ -114,7 +114,7 @@ backend.addOutput({
 
 To ensure the local **amplify_outputs.json** file is up-to-date, you can run [the npx ampx generate outputs command](/[platform]/reference/cli-commands/#npx-ampx-generate-outputs) or download the latest **amplify_outputs.json** from the Amplify console as shown below.
 
-![outputs](/images/gen2/getting-started/react/amplify-outputs-download.png)
+![](/images/gen2/getting-started/react/amplify-outputs-download.png)
 
 </InlineFilter>
 

src/pages/[platform]/start/account-setup/index.mdx

@@ -79,11 +79,11 @@ Follow the steps below if **you have never set up AWS profiles before**. If you
 
 Sign in to the AWS Console to access [IAM Identity Center page](https://console.aws.amazon.com/singlesignon/home) and choose **Enable**.
 
-![AWS IAM Identity Center page indicating the "enable" button.](/images/gen2/account-setup/sso-enable.png)
+![](/images/gen2/account-setup/sso-enable.png)
 
 A dialog will open, prompting you to "Choose how to configure IAM Identity Center in your AWS environment." Select **Enable with AWS Organizations** and choose **Continue**.
 
-![AWS IAM Identity Center enable dialog with AWS Organizations, indicating to "continue".](/images/gen2/account-setup/sso-enable-dialog.png)
+![](/images/gen2/account-setup/sso-enable-dialog.png)
 
 Next, we are going to automate a number of steps that simulate the operations of setting up a user in the IAM Identity Center console. To get started open CloudShell, located in the console footer.
 
@@ -179,7 +179,7 @@ Now create a password for the user that we need for the next step. In the IdC co
 
 Check your email (make sure you also check your spam folder). Click on the _Reset password_ link and choose a password of your choice. When signing in make sure to use _amplify-admin_ as the _Username_.
 
-![AWS IAM Identity Center password reset.](/images/gen2/account-setup/sso-reset-password.png)
+![](/images/gen2/account-setup/sso-reset-password.png)
 
 ## Finish local setup
 
@@ -305,7 +305,7 @@ Bootstrapping is the process of provisioning resources for the AWS CDK before yo
 
 During the first-time setup, `npx ampx sandbox` will ask you to sign in to the AWS Management Console. You must sign in as the account root user or as a user that has AdministratorAccess. Once signed in, you will be redirected to the Amplify console. On the **Create new app** page, choose **Initialize setup now**. It may take a few minutes for the bootstrapping process to complete.
 
-![Create new app page in Amplify console with the Initialize setup now button.](/images/gen2/account-setup/profile5.png)
+![](/images/gen2/account-setup/profile5.png)
 
 ## Success
 

src/pages/[platform]/start/quickstart/index.mdx

@@ -362,7 +362,7 @@ Now let's set up our local development environment to add features to the fronte
 
 At the bottom of the page you will see a tab for **Deployed backend resources**. Click on the tab and then click the **Download amplify_outputs.json file** button. 
 
-![outputs](/images/gen2/getting-started/react/amplify-outputs-download.png)
+![](/images/gen2/getting-started/react/amplify-outputs-download.png)
 
 Clone the repository locally.
 
@@ -686,7 +686,7 @@ Now let's set up our local development environment to add features to the fronte
 
 At the bottom of the page you will see a tab for **Deployed backend resources**. Click on the tab and then click the **Download amplify_outputs.json file** button. 
 
-![outputs](/images/gen2/getting-started/react/amplify-outputs-download.png)
+![](/images/gen2/getting-started/react/amplify-outputs-download.png)
 
 Clone the repository locally.
 
@@ -1005,7 +1005,7 @@ Now let's set up our local development environment to add features to the fronte
 
 At the bottom of the page you will see a tab for **Deployed backend resources**. Click on the tab and then click the **Download amplify_outputs.json file** button.
 
-![outputs](/images/gen2/getting-started/react/amplify-outputs-download.png)
+![](/images/gen2/getting-started/react/amplify-outputs-download.png)
 
 Clone the repository locally.
 
@@ -2228,7 +2228,7 @@ In **Select a Project Template**, select **Empty Activity** or **Empty Compose A
 
 On the **Deployed backend resources**, choose **Download outputs file** to download the `amplify_outputs.json` file that contains identifiers for all the deployed backend resources.
 
-![outputs](/images/gen2/getting-started/react/amplify-outputs-download.png)
+![](/images/gen2/getting-started/react/amplify-outputs-download.png)
 
 
 Now move the `amplify_outputs.json` file you downloaded above to `app/src/main/res/raw` in your Android project. You will now be able to connect to this backend.

src/pages/[platform]/start/quickstart/nextjs-app-router-client-components/index.mdx

@@ -110,7 +110,7 @@ Now let's set up our local development environment to add features to the fronte
 
 At the bottom of the page you will see a tab for **Deployed backend resources**. Click on the tab and then click the **Download amplify_outputs.json file** button. 
 
-![outputs](/images/gen2/getting-started/react/amplify-outputs-download.png)
+![](/images/gen2/getting-started/react/amplify-outputs-download.png)
 
 Clone the repository locally.
 

src/pages/[platform]/start/quickstart/nextjs-pages-router/index.mdx

@@ -112,7 +112,7 @@ Now let's set up our local development environment to add features to the fronte
 
 At the bottom of the page you will see a tab for **Deployed backend resources**. Click on the tab and then click the **Download amplify_outputs.json file** button. 
 
-![outputs](/images/gen2/getting-started/react/amplify-outputs-download.png)
+![](/images/gen2/getting-started/react/amplify-outputs-download.png)
 
 Clone the repository locally.