Fix broken links and malformed install code blocks in Aspire 13.2 What's New doc

src/frontend/src/content/docs/get-started/add-aspire-existing-app-csharp-apphost.mdx

@@ -600,7 +600,7 @@ ServiceDefaults provide a standardized way to add observability, resilience, and
 </Steps>
 
 <LearnMore>
-    For more information on ServiceDefaults, see [Service Defaults](/fundamentals/csharp-service-defaults/).
+    For more information on ServiceDefaults, see [Service Defaults](/get-started/csharp-service-defaults/).
 </LearnMore>
 
 </Pivot>
@@ -939,7 +939,7 @@ Congratulations! You've successfully added Aspire to your existing application.
 - **Add more integrations** — Explore [Aspire integrations](/integrations/gallery/) to simplify working with databases, caches, and message queues
 - **Configure observability** — Enhance your application's telemetry:
   <Pivot id="csharp">
-  - Learn about [Service Defaults](/fundamentals/csharp-service-defaults/)
+  - Learn about [Service Defaults](/get-started/csharp-service-defaults/)
   </Pivot>
   <Pivot id="python">
   - See [Standalone dashboard for Python](/dashboard/standalone-for-python/)

src/frontend/src/content/docs/get-started/first-app-csharp-apphost.mdx

@@ -35,7 +35,7 @@ This starter template uses modern C#:
 
 - [Minimal APIs](https://learn.microsoft.com/aspnet/core/fundamentals/minimal-apis) for lightweight HTTP APIs
 - [Blazor](https://learn.microsoft.com/aspnet/core/blazor) for interactive web UIs using C#
-- [Service defaults](/fundamentals/csharp-service-defaults/) for shared configuration of observability and resilience
+- [Service defaults](/get-started/csharp-service-defaults/) for shared configuration of observability and resilience
 
 The following diagram shows the architecture of the sample app you're creating:
 

src/frontend/src/content/docs/whats-new/aspire-13-2.mdx

@@ -70,16 +70,16 @@ Or install the CLI from scratch:
 
 <OsAwareTabs>
   <Fragment slot="unix">
-    
-    ```bash title="Aspire CLI — Install Aspire CLI" curl -sSL
-    https://aspire.dev/install.sh | bash
+
+    ```bash title="Aspire CLI — Install Aspire CLI"
+    curl -sSL https://aspire.dev/install.sh | bash
     ```
 
   </Fragment>
   <Fragment slot="windows">
 
-    ```powershell title="Aspire CLI — Install Aspire CLI" irm
-    https://aspire.dev/install.ps1 | iex
+    ```powershell title="Aspire CLI — Install Aspire CLI"
+    irm https://aspire.dev/install.ps1 | iex
     ```
 
   </Fragment>
@@ -485,7 +485,7 @@ The extension now reads `aspire.config.json` for apphost discovery instead of re
 - Falls back to `code-insiders` when `code` is not found.
 
 <LearnMore>
-  For more details, see [Use VS Code with Aspire](/get-started/use-vscode/) and the [extension on the VS Code Marketplace](https://marketplace.visualstudio.com/items?itemName=ms-azuretools.vscode-aspire).
+  For more details, see [Use VS Code with Aspire](/get-started/aspire-vscode-extension/) and the [extension on the VS Code Marketplace](https://marketplace.visualstudio.com/items?itemName=ms-azuretools.vscode-aspire).
 </LearnMore>
 
 ## 🌐 TypeScript AppHost support