Scrub quickstart term from documentation

[jasonviviano]

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Description

Auto-generated description

🤖 Generated by Copilot at 871f06f

Summary

🖊️🔄📄

Updated some links and image file names to reflect the renaming of some pages from quickstarts to tutorials or how-to guides. This improves the consistency and clarity of the documentation.

link text updated
to match new page titles
autumn of changes

Walkthrough

• Renamed "recipe quickstart" to "recipe tutorial" in the title, headings, and text of docs/content/tutorials/tutorial-recipe/index.md (link)
• Updated the image file name and alt text to match the new tutorial name in docs/content/tutorials/tutorial-recipe/index.md (link)
• Changed the link text from "environment variables quickstart" to "environment variables how-to guide" in docs/content/guides/author-apps/containers/overview/index.md (link)

Issue reference

#749

[github-actions]

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