Update getting started guide to document visual schema compare feature

[Copilot]

The getting started guide documented the old script-based schema compare, which has been superseded by the visual schema compare tool window feature.

Changes

• docs/getting-started.md: Replaced the "Comparing Schemas" section — updated description, steps, and menu item name (Visual Schema Compare (preview)...); added SchemaCompare.png screenshot
• README.md: Updated feature list entry to reflect visual comparison rather than script generation

Original prompt

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This section details on the original issue you should resolve

<issue_title>Update getting started guide with visual schema compare feature (and remove the current compare feature)</issue_title>
<issue_description></issue_description>

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

• Fixes Update getting started guide with visual schema compare feature (and remove the current compare feature) #173

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[Copilot]

Pull request overview

Updates end-user documentation to reflect the newer Visual Schema Compare tool window experience, replacing the older script-based workflow in the Getting Started guide and aligning the README feature list accordingly.

Changes:

• Rewrote “Comparing Schemas” in docs/getting-started.md to describe Visual Schema Compare and updated the context-menu command name.
• Added/linked a new Schema Compare screenshot (img/SchemaCompare.png).
• Updated README’s “Schema compare” feature description to emphasize visual comparison and applying changes.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docs/getting-started.md	Replaces script-based schema compare instructions with Visual Schema Compare steps and adds a screenshot reference.
README.md	Updates feature list wording to match the visual schema compare workflow.