Update assistant.md (#649)

Separate table header from contents

docs/kagi/ai/assistant.md

@@ -47,6 +47,7 @@ We maintain the [Kagi LLM Benchmarking Project](./llm-benchmark.md) to measure m
 Another important aspect is the privacy policy of the model provider. We put together the following table for easy comparison:
 
 | Model                                                            | Model Provider             | Trains on User Data via API | Data Retention for API             | Privacy Policy / FAQ |
+|:--|:--|:--|:--|:--|:--|
 | Claude 3 Haiku / Claude 3.5 Sonnet / Claude 3 Opus               | Anthropic                  | No                          | 30 days (flagged prompts: 2 years) | [Privacy Policy](https://www.anthropic.com/legal/privacy) [FAQ](https://privacy.anthropic.com/en/articles/7996866-how-long-do-you-store-personal-data)       |
 | GPT 4o / GPT 4o mini                                             | OpenAI                     | No                          | 30 days                            | [Privacy Policy](https://openai.com/enterprise-privacy/)       |
 | Mistral Pixtral / Mistral Large                                  | Mistral AI                 | No                          | 30 days                            | [Privacy Policy](https://mistral.ai/terms/)       |