add some aliases (#22337)

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## Description

Added some aliases for Hub and get-started content

## Related issues or tickets

ENGDOCS-2514

## Reviews

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- [ ] Editorial review

Signed-off-by: Craig <craig.osterhout@docker.com>

content/get-started/_index.md

@@ -28,6 +28,8 @@ params:
     description: Get guided through a 45-minute workshop to learn about Docker.
     link: /get-started/workshop/
     icon: desk
+aliases:
+  - /get-started/what-is-a-container
 ---
 
 If you're new to Docker, this section guides you through the essential resources to get started.

content/get-started/workshop/02_our_app.md

@@ -13,6 +13,7 @@ aliases:
   - /get-started/part2/
   - /get-started/02_our_app/
   - /guides/workshop/02_our_app/
+  - /guides/walkthroughs/containerize-your-app/
 ---
 
 For the rest of this guide, you'll be working with a simple todo

content/manuals/docker-hub/_index.md

@@ -32,6 +32,8 @@ grid:
   description: Find out about new features, improvements, and bug fixes.
   icon: note_add
   link: /docker-hub/release-notes
+aliases:
+  - /docker-hub/overview/
 ---
 
 Docker Hub simplifies development with the world's largest container registry

content/manuals/docker-hub/repos/manage/trusted-content/_index.md

@@ -3,6 +3,8 @@ description: Learn how to manage and contribute to trusted content.
 keywords: Docker Hub, Hub, trusted content
 title: Trusted content
 weight: 100
+aliases:
+ - /trusted-content/
 ---
 
 Docker's trusted content programs ensure that container images meet the highest