Update leaderboard: add Catalyst N3 platform and N3 benchmarks coming soon

Author: Henry Barnes

huggingface/leaderboard/README.md

@@ -0,0 +1,29 @@
+---
+title: SNN Benchmark Leaderboard
+emoji: 🧠
+colorFrom: blue
+colorTo: indigo
+sdk: gradio
+sdk_version: 5.12.0
+app_file: app.py
+pinned: true
+license: mit
+tags:
+  - neuromorphic
+  - spiking-neural-networks
+  - benchmark
+  - leaderboard
+short_description: SNN benchmarks across neuromorphic hardware
+---
+
+# SNN Benchmark Leaderboard
+
+Community benchmark comparison for spiking neural networks across neuromorphic hardware platforms.
+
+Covers SHD, SSC, N-MNIST, GSC KWS, and DVS128 Gesture benchmarks. Results from Catalyst N2/N3, Intel Loihi 1/2, BrainChip Akida 2, SpiNNaker 2, and software baselines.
+
+**Catalyst N3 benchmark results** (with precision sweeps, FACTOR compression, and N3 hardware feature demonstrations) coming soon.
+
+**Submit your results**: Open a discussion or PR on this Space to add your platform's numbers.
+
+Maintained by [Catalyst Neuromorphic](https://catalyst-neuromorphic.com).