Add Ollama Modelfile with Llama 3.1 chat template fix

Modelfile

@@ -0,0 +1,39 @@
+# Modelfile for ThalisAI/DeepSeek-R1-Distill-Llama-70B-heretic
+#
+# This model is based on Llama 3.1 architecture and requires the Llama 3.1
+# chat template instead of the DeepSeek native template. The default template
+# from the GGUF metadata uses DeepSeek's fullwidth Unicode special tokens
+# which are not correctly handled by the Llama BPE tokenizer in some backends.
+#
+# Usage:
+#   ollama create deepseek-r1-70b-heretic -f DeepSeek-R1-Distill-Llama-70B-heretic.Modelfile
+#   ollama run deepseek-r1-70b-heretic "Hello!"
+#
+# To use a different quantization, change the FROM line:
+#   FROM hf.co/ThalisAI/DeepSeek-R1-Distill-Llama-70B-heretic:Q4_K_M
+#   FROM hf.co/ThalisAI/DeepSeek-R1-Distill-Llama-70B-heretic:Q3_K_M
+
+FROM hf.co/ThalisAI/DeepSeek-R1-Distill-Llama-70B-heretic:Q6_K
+
+TEMPLATE """{{- if .System }}<|start_header_id|>system<|end_header_id|>
+
+{{ .System }}<|eot_id|>{{ end }}
+{{- range $i, $_ := .Messages }}
+{{- $last := eq (len (slice $.Messages $i)) 1 }}
+{{- if eq .Role "user" }}<|start_header_id|>user<|end_header_id|>
+
+{{ .Content }}<|eot_id|>
+{{- else if eq .Role "assistant" }}<|start_header_id|>assistant<|end_header_id|>
+
+{{- if .Content }}{{ .Content }}
+{{- end }}{{- if not $last }}<|eot_id|>{{- end }}
+{{- end }}
+{{- if and $last (ne .Role "assistant") }}<|start_header_id|>assistant<|end_header_id|>
+
+{{ end }}
+{{- end }}"""
+
+PARAMETER stop <|eot_id|>
+PARAMETER stop <|end_of_text|>
+PARAMETER temperature 0.6
+PARAMETER top_p 0.95