Fix broken docs links and MCP plugin docs

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 4215785a-7e6e-49c5-abaa-c39b0793a11e

website/src/content/docs/learning-hub/agentic-workflows.md

@@ -77,7 +77,7 @@ Agentic Workflows are ideal when you need **autonomous, event-driven automation*
 
 ## Using Workflows from Awesome Copilot
 
-The [Awesome Copilot workflows page](../../workflows/) hosts a growing collection of community-contributed workflows. Here's how to install and use them.
+The [repository workflows directory](https://github.com/github/awesome-copilot/tree/main/workflows) hosts a growing collection of community-contributed workflows. Here's how to install and use them.
 
 ### Prerequisites
 
@@ -89,7 +89,7 @@ gh extension install github/gh-aw
 
 ### Installing a Workflow
 
-1. **Browse** the [workflows collection](../../workflows/) and find one that fits your needs
+1. **Browse** the [workflows collection](https://github.com/github/awesome-copilot/tree/main/workflows) and find one that fits your needs
 2. **Copy** the workflow `.md` file into your repository's `.github/workflows/` directory
 3. **Compile** the workflow to generate the Actions lock file:
 

website/src/content/docs/learning-hub/using-copilot-coding-agent.md

@@ -327,7 +327,7 @@ This repository provides a curated collection of agents, skills, and hooks desig
 
 ### Adding Hooks from This Repo
 
-1. Browse the [Hooks Directory](../../hooks/) for automation hooks
+1. Browse the [Hooks documentation](https://github.com/github/awesome-copilot/blob/main/docs/README.hooks.md) for automation hooks
 2. Copy the `hooks.json` content into a file in `.github/hooks/` in your repository
 3. Copy any referenced scripts alongside it
 4. The hooks will run automatically during coding agent sessions