Specify suggested default models (#41)

* Specify suggested default models 

Specify Llama 3 8B/40B as suggested default language model and LLaVA as suggested default vision model 

These models were used for building/testing

* Update README.md

remove unnecessary opening bracket

README.md

@@ -40,8 +40,8 @@ pip install memary
 
 ## Demo
 **Notes:** memary currently assumes the local installation method and currently supports any models available through Ollama:
-- LLM running locally using Ollama **OR** `gpt-3.5-turbo`
-- Vision model running locally using Ollama **OR** `gpt-4-vision-preview`
+- LLM running locally using Ollama (Llama 3 8B/40B as suggested defaults) **OR** `gpt-3.5-turbo`
+- Vision model running locally using Ollama (LLaVA as suggested default) **OR** `gpt-4-vision-preview`
 
 memary will default to the locally run models unless explicitly specified.