Add ef-code-8-samples as Git submodule

[Copilot]

Adds the ef-code-8-samples repository as a Git submodule to provide Entity Framework Core 8 reference implementations alongside existing SQL documentation.

Changes

• Created .gitmodules with submodule configuration pointing to https://github.com/karenpayneoregon/ef-code-8-samples.git
• Configured submodule to track master branch for updates
• Submodule contents available in ef-code-8-samples/ directory

Usage

Clone with submodules:

git clone --recurse-submodules https://github.com/ewdlop/SQLNotes.git

Or initialize after cloning:

git submodule update --init --recursive

Update submodule to latest:

git submodule update --remote ef-code-8-samples

Original prompt

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This section details on the original issue you should resolve

<issue_title>https://github.com/karenpayneoregon/ef-code-8-samples.git</issue_title>
<issue_description></issue_description>

<agent_instructions>A submodule.</agent_instructions>

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

• Fixes https://github.com/karenpayneoregon/ef-code-8-samples.git #60

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[Copilot]

Pull request overview

This PR adds the ef-code-8-samples repository as a Git submodule to provide Entity Framework Core 8 code examples alongside the existing SQL documentation.

• Configured Git submodule tracking the master branch of the external repository
• Added .gitmodules file with submodule path and URL configuration
• Submodule commit reference points to 04b7aaf5f92dfd2f78de521f05825853ef215b80

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
.gitmodules	Defines the submodule configuration including path, URL, and branch tracking
ef-code-8-samples	Establishes the submodule commit reference point

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[Copilot]

The branch name 'master' is specified, but many repositories have transitioned to using 'main' as the default branch name. Verify that the ef-code-8-samples repository actually uses 'master' as its default branch. If it uses 'main', update this configuration to avoid tracking issues.

Suggested change

	branch = master
	branch = main