Vscode: add help text to model selection dropdown

[spotlesscoder]

There are a lot of models to choose from
I can't tell from their names (e.g. deepseek-coder:6.7b-base-q what the difference of all these models is
It would be good to at least link to a help page in that section of the settings that has info what the differences and use cases of each of the models is

[adwivedipython]

I am running llama coder through vscode extension also , but it doesn't request to local, what am i missing ?