Fix markdown code block nesting in Part 9 README

[Copilot]

Problem

The Part 9 README contained a sample markdown code block that was ending prematurely due to improper nesting. The section "Create Package README" showed a sample PACKAGE_README.md file within a markdown code block, but this outer block contained nested code blocks (bash, json, text) that caused the parser to close the outer block too early.

This resulted in:

• The outer markdown block closing at the first nested \``` delimiter (around line 196)
• The remaining content rendering as raw text instead of formatted markdown
• Lines 283-285 showing malformed closing syntax (\``textfollowed by````)

Solution

Changed the outer markdown code block to use 4 backticks instead of 3. This is the standard solution for nesting code blocks in markdown - the outer fence must have more backticks than any inner fence.

Changes:

• Line 178: \``markdown→````markdown`
• Line 283: Replaced malformed closing with \````

Result

The sample README now renders correctly with all nested code examples (bash, json, text) properly displayed within the outer markdown block, and subsequent documentation sections appear in their correct context.

Fixes #25

Original prompt

---

This section details on the original issue you should resolve

<issue_title>The Sample Readme markdown block in Part 9 ends early</issue_title>
<issue_description>In Part 9 there is a section that directs the reader to add professional documentation to the project and presents a block of markdown code. This is improperly nested and the markdown block ends, followed by rendered HTML in the docs.

https://github.com/dotnet-presentations/ai-workshop/blob/main/Part%209%20-%20MCP%20Publishing/README.md#create-package-readme

Remember that you can nest markdown using more than 3 ` characters as long as they match:

here is a sample

````markdown
nested

```markdown
and nested even more
```

````</issue_description>

## Comments on the Issue (you are @copilot in this section)

<comments>
</comments>

Fixes #173

---

💬 Share your feedback on Copilot coding agent for the chance to win a $200 gift card! Click here to start the survey.

[Copilot]

Copilot wasn't able to review any files in this pull request.