Update duration estimates in YAML files and remove unnecessary whitespace in markdown files

Author: ChrisHowd

learn-pr/wwl-azure/develop-ai-enabled-apps-using-github-copilot-sdk/10-summary.yml

@@ -8,6 +8,6 @@ metadata:
   author: chrishowd
   ms.author: cahowd
   ms.topic: unit
-durationInMinutes: 3
+durationInMinutes: 2
 content: |
   [!include[](includes/10-summary.md)]

learn-pr/wwl-azure/develop-ai-enabled-apps-using-github-copilot-sdk/2-what-ai-agent.yml

@@ -8,6 +8,6 @@ metadata:
   author: chrishowd
   ms.author: cahowd
   ms.topic: unit
-durationInMinutes: 6
+durationInMinutes: 4
 content: |
   [!include[](includes/2-what-ai-agent.md)]

learn-pr/wwl-azure/develop-ai-enabled-apps-using-github-copilot-sdk/3-what-github-copilot-sdk.yml

@@ -8,6 +8,6 @@ metadata:
   author: chrishowd
   ms.author: cahowd
   ms.topic: unit
-durationInMinutes: 10
+durationInMinutes: 8
 content: |
   [!include[](includes/3-what-github-copilot-sdk.md)]

learn-pr/wwl-azure/develop-ai-enabled-apps-using-github-copilot-sdk/4-examine-ai-agent-use-cases.yml

@@ -8,6 +8,6 @@ metadata:
   author: chrishowd
   ms.author: cahowd
   ms.topic: unit
-durationInMinutes: 8
+durationInMinutes: 5
 content: |
   [!include[](includes/4-examine-ai-agent-use-cases.md)]

learn-pr/wwl-azure/develop-ai-enabled-apps-using-github-copilot-sdk/5-design-ai-agents.yml

@@ -8,6 +8,6 @@ metadata:
   author: chrishowd
   ms.author: cahowd
   ms.topic: unit
-durationInMinutes: 8
+durationInMinutes: 7
 content: |
   [!include[](includes/5-design-ai-agents.md)]

learn-pr/wwl-azure/develop-ai-enabled-apps-using-github-copilot-sdk/8-exercise-integrate-ai-agent-github-copilot-sdk.yml

@@ -8,6 +8,6 @@ metadata:
   author: chrishowd
   ms.author: cahowd
   ms.topic: unit
-durationInMinutes: 94
+durationInMinutes: 60
 content: |
   [!include[](includes/8-exercise-integrate-ai-agent-github-copilot-sdk.md)]

learn-pr/wwl-azure/develop-ai-enabled-apps-using-github-copilot-sdk/includes/5-design-ai-agents.md

@@ -74,4 +74,3 @@ When designing an agent to build with the Copilot SDK, focus on three areas:
 - **Policies**: What rules must the agent follow? Encode these as system prompt instructions, tool handler validations, or session hook logic.
 
 You also need to plan for failure modes. If a tool call fails, should the agent retry, try an alternative approach, or escalate? These decisions can be encoded in the system prompt ("if a tool returns an error, inform the user and offer alternatives") or handled programmatically in error-handling hooks.
-

learn-pr/wwl-azure/develop-ai-enabled-apps-using-github-copilot-sdk/includes/6-implement-ai-agents-github-copilot-sdk.md

@@ -277,4 +277,3 @@ session.On(evt =>
 ```
 
 The `DeltaContent` property contains the incremental text fragment. Streaming provides a more responsive experience because users see the response as it forms, rather than waiting for the model to generate the entire message.
-