feat: enhance README and update API client initialization

- Updated the README to include new badges, a detailed description of the Hermes Agent, and a table summarizing its features, improving clarity and presentation for users.
- Modified the API client initialization in `transcription_tools.py` and `tts_tool.py` to include a base URL, ensuring compatibility with the OpenAI API.

tools/tts_tool.py

@@ -224,7 +224,7 @@ def _generate_openai_tts(text: str, output_path: str, tts_config: Dict[str, Any]
     else:
         response_format = "mp3"
 
-    client = OpenAIClient(api_key=api_key)
+    client = OpenAIClient(api_key=api_key, base_url="https://api.openai.com/v1")
     response = client.audio.speech.create(
         model=model,
         voice=voice,