docs: polish self-hosted B300 devnote

[lipikaramaswamy]

Summary

• Tighten the intro and the closing section (renamed What It Means → The Bottom Line) for readability.
• Escape $ in prose so the math renderer stops turning the Cost Estimate figures into italic math spans.
• Add a note that model size is a hardware question — the pipeline just points at endpoints, so larger models / more replicas need infra, not config changes.

Docs-only change to docs/devnotes/posts/self-hosted-anonymizer-b300.md. The published 0.3.0 docs site was already updated via mike for readers; this lands the same edits on main so they ride the next release (no retag/re-release intended for such a minor change).

Test plan

• make docs-build (strict) passes
• Verified $ figures render as plain dollar amounts in local mkdocs serve

[greptile-apps]

Greptile Summary

This PR polishes the self-hosted B300 devnote. The main changes are:

• Rewrites the intro and closing section for readability.
• Escapes dollar amounts so they render as plain currency values.
• Renames the closing section to The Bottom Line.
• Adds a note that larger models and replicas are an infrastructure sizing concern.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed documentation.

Important Files Changed

Filename	Overview
docs/devnotes/posts/self-hosted-anonymizer-b300.md	Updates prose, escaped currency values, and the closing guidance in the self-hosted B300 devnote.

_{Reviews (1): Last reviewed commit: "docs: polish self-hosted B300 devnote" | Re-trigger Greptile}