Create single commit PR for getting-started files from PR #330

[Copilot]

This PR extracts only the files with "getting-started" in their path from PR #330 and applies them as a single commit.

Changes Made

Added two new files from PR #330:

• getting-started/headless-spa-frontend-implementation-methods.md - Overview of page tagging/event tracking for headless and SPA builds
• getting-started/what-nosto-does-and-how-it-works.md - Introduction to what Nosto does and how it works

These files provide getting started documentation for implementing Nosto in headless and SPA frontend architectures.

• Fixes split PR #335

Original prompt

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This section details on the original issue you should resolve

<issue_title>split PR</issue_title>
<issue_description>create a new single commit PR based on https://github.com/Nosto/wiki-docs/pull/330/files
include only files with getting-started in the path</issue_description>

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

• Fixes split PR #335

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[timowestnosto]

@copilot try again

[timowestnosto]

@copilot try again

[Copilot]

@copilot try again

Done! Created a single commit (be0dcdc) that includes only the files with "getting-started" in the path from PR #330.