add nemotron-70b and nemotron-70b-bf16 to tinychat

exo/tinychat/index.html

@@ -38,6 +38,8 @@
 <option value="llama-3.1-405b">Llama 3.1 405B</option>
 <option value="llama-3-8b">Llama 3 8B</option>
 <option value="llama-3-70b">Llama 3 70B</option>
+<option value="nemotron-70b">Nemotron 70B</option>
+<option value="nemotron-70b-bf16">Nemotron 70B (BF16)</option>
 <option value="mistral-nemo">Mistral Nemo</option>
 <option value="mistral-large">Mistral Large</option>
 <option value="deepseek-coder-v2-lite">Deepseek Coder V2 Lite</option>