Update README.md

Update README.md

Merge pull request #7 from turmind/main

add set your LiteLLM proxy master key

master key from env

Update README.md

fix(set_env_variables): fix usage of set_env_variables, pop "env_vars" before calling completion

add ability to set env variables when passed req

use default models

remove cache

fixes remove print statement

fix using cache params

use litellm.completion

fixing time.time error

adding /models endpoint