adding community featured models

[Ssofja]

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What does this PR do ?

Adds a Featured Community Checkpoints documentation page that highlights external fine-tunes built on NVIDIA NeMo ASR checkpoints, with runtime-specific load instructions for NeMo, MLX, and GGUF.

Collection: ASR

Changelog

• Added docs/source/asr/featured_community_checkpoints.rst - new page listing community checkpoints grouped by runtime:
  • NeMo - 4 Hugging Face models with .nemo weights (akera/parakeet-tdt-salt, johannhartmann/parakeet_de_med, qenneth/parakeet-tdt-0.6b-v3-finetuned-for-ATC, KasuleTrevor/parakeet-0.6b-cv-sw-5hr_v9)
  • MLX Inference -NeurologyAI/neuro-parakeet-mlx with parakeet-mlx usage
  • GGUF Inference-cstr/parakeet-tdt-0.6b-v3-GGUF and cstr/canary-1b-v2-GGUF with CrispASR build/run commands
  • Submit a Community Checkpoint -instructions for suggesting additions via GitHub issue
• Added the page as the last entry in the ASR collection toctree (docs/source/asr/intro.rst)
• Added cross-link from docs/source/asr/asr_checkpoints.rst to the new community page
• Added cross-link from docs/source/starthere/choosing_a_model.rst under "Where to Find Models"

Usage

import nemo.collections.asr as nemo_asr

model = nemo_asr.models.ASRModel.from_pretrained("johannhartmann/parakeet_de_med")
print(model.transcribe(["audio.wav"])[0].text)

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Additional Information

• Docs-only change; no code or test changes required
• Community checkpoints are curated examples, not NVIDIA-maintained models
• Page path: asr/featured_community_checkpoints.html

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[pzelasko]

I think we shouldn't aim to provide up-to-date installation instructions for these frameworks. Can we re-arrange this page to be just one table that says sth like:

ckpt name | what's special about it | framework | url