Update get-started.mdx title

[joslyn-cf]

Changing title to avoid confusion by customers looking for actual product Get Started guides

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Documentation checklist

• The documentation style guide has been adhered to.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

[cloudflare-workers-and-pages]

Deploying cloudflare-docs with    Cloudflare Pages

Latest commit:	27e97f1
Status:	✅  Deploy successful!
Preview URL:	https://ace6f782.cloudflare-docs-7ou.pages.dev
Branch Preview URL:	https://joslyn-cf-patch-3.cloudflare-docs-7ou.pages.dev

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[github-actions]

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/get-started/	https://joslyn-cf-patch-3.cloudflare-docs-7ou.pages.dev/style-guide/documentation-content-strategy/content-types/get-started/