Adds clarity to build model terminology (issue #714)

[chtiangg]

In the build model section:

1. Define "Build Caches".
2. Adds a collapse card for "Ambiguous terms to avoid", and clarify "build recipe" and "builder".
3. Makes "Ambiguous terms to avoid" a collapse card in the Package model section.

After this change for the terms mentioned in issue #714:

• Build process: is defined in "Build" before this PR, see link.
• Build: is defined before this PR.
• Build service: is defined in "Platform" before this PR, see link .
• Builder: is clarified in "Ambiguous terms to avoid".
• Build system: is defined in "Platform" before this PR, see link
• Build environment: s defined before this PR.
• Build tools: is included in "Dependencies" before this PR, see link
• Build model: no need to define.
• Build platform: is defined before this PR.
• Build recipe: is clarified in "Ambiguous terms to avoid".
• Build infrastructure: didn't change, but please let me know if it needs to be clarified.
• Build configuration source: is clarified in "Ambiguous terms to avoid".
• Build worker: didn't change, but not sure if this is really needed.
• Build cache: is newly added to the term table.
• Builder model: didn't change, but not sure if this is really needed.
• Build executor: is somewhat defined in "Build environment" before this PR, see link
• Build definition: is clarified in "Ambiguous terms to avoid".
• Control Plane: is defined before this PR.

[netlify]

✅ Deploy Preview for slsa ready!

Name	Link
🔨 Latest commit	4956414
🔍 Latest deploy log	https://app.netlify.com/sites/slsa/deploys/6499b5696d43bf00087a1af9
😎 Deploy Preview	https://deploy-preview-876--slsa.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.

[chtiangg]

Sorry, included a github action workflow script by mistake, and removing it now.

[chtiangg]

Well, had a pretty bad experience with git rebase, but made it work.

[joshuagl]

Thanks for working on these clarifications, these changes are a solid improvement.
I have a few minor requests and a couple of questions, LMK what you think.

[chtiangg]

I will hold off on making any changes, before we resolve the comment thread for the "steps".

[chtiangg]

Thanks for the review! I will update the description and remove the reverted changes.

[MarkLodato]

LGTM. I just pushed a few minor fixes, so another review by @joshuagl would be appreciated.