Fix renderer: in-Space chromium + partner logos (README.md)

README.md

@@ -16,5 +16,5 @@ short_description: Certificates for ICML 2026 Open Reproductions participants
 Sign in with Hugging Face to generate your certificate of participation.
 Eligibility: at least one claim judged **verified** by the automated Logbook
 Judge before the challenge deadline (frozen in `eligible.json` at challenge
-close; 267 participants qualify). Certificates are rendered to PNG in-process
-by `certificate.py` (Pillow) and include your verified-claim statistics.
+close; 267 participants qualify). Certificates render in-Space with headless
+Chromium and include your verified-claim statistics and partner logos.