Update README.md

README.md

@@ -8,6 +8,24 @@ sdk_version: 5.35.0
 app_file: app.py
 pinned: false
 license: apache-2.0
-short_description: Optimized version for phone use based on Matthew's mobile version, added tap to zoom, removed redundant codes, set new default settings, and include more in Summary tabl. counter for uploaded microscopy images
+short_description: Development build — optimized for phone use
+---
+
+## What's new in v2
+
+Based on Matthew's mobile version, with:
+
+- **Tap-to-zoom corner selection** — tap roughly near a corner, then precisely
+  in the zoomed view. No more fighting to place points under your fingertip.
+- **Faster crop picker** — the preview no longer re-encodes a 12 MP image on
+  every tap (~3 s → ~7 ms per tap).
+- **Removed duplicate functions** that silently renumbered cell IDs and could
+  mismatch live/dead labels after adjusting the exclusion sliders.
+- **New defaults** — minimum size filter on, stereological counting on with
+  the hemocytometer model, 1% exclusion width.
+- **Viability runs automatically** after segmentation.
+- **Cell concentration** at 1:1 (2x) and 1:10 (10x) trypan blue dilutions.
+- **Summary tab** now shows per-tab counts, their mean, concentrations for
+  live/dead/total, and a CSV export covering all tabs plus the summary.
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+⚠️ Development build — not for manuscript data collection.