Refine README content for clarity and conciseness

[FujitsuPolycom]

Removed redundant information about token capacity and clarified the status of switched deployments.

What and why

Validation

Additional context

• I removed credentials and private site identifiers from the change.
• I identified copied or adapted work and updated third-party notices when required.

[FujitsuPolycom]

Closing as superseded. This PR was authored against pre-#262 main; a re-diff against current main shows it would remove the R33 release documentation added by #262 and #261 — the Generic R33 image profile rows, the bounded-qualified status paragraphs, the 7.5 GiB / 1,081,922-token KV record, and the R33 container-image table entry — and restore the pre-R33 table (8.75 GiB prose, shared-image rows, 'implemented/research-only' status) that #262 deliberately replaced.

The valid intent here — trimming redundant KV-capacity prose and clarifying switched-deployment status — is already satisfied on current main: the qualification-status paragraphs are the present-state record the repository requires, and the switched-deployment caveat survives in the current text. A fresh pass against today's README is welcome if more trimming is wanted.