Restructure project files and add README, docs, and tools

README.md

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+# Fedora Fingerprint Feedback
+
+Deployable scripts to improve visible feedback speed for failed fingerprint scans
+in GNOME/GDM on Fedora systems managed by `authselect`.
+
+## Repository layout
+- `tools/gnome_fprint_feedback_setup.sh`
+- `tools/gnome_fprint_feedback_rollback.sh`
+- `docs/gnome-fingerprint-feedback-deploy.md`
+
+## Quick start
+```bash
+sudo ./tools/gnome_fprint_feedback_setup.sh --max-tries 2 --timeout 6
+```
+
+## Rollback
+```bash
+sudo ./tools/gnome_fprint_feedback_rollback.sh
+```