R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'gptstudio'

gptstudio::anthropic |  | Anthropic API Service | HTML | source | R code
gptstudio::azure |  | Azure OpenAI API Service | HTML | source | R code
gptstudio::cohere |  | Cohere | HTML | source | R code
gptstudio::google |  | Google's AI Studio API Service | HTML | source | R code
gptstudio::huggingface |  | HuggingFace API Service | HTML | source | R code
gptstudio::openai |  | OpenAI API Services | HTML | source | R code
gptstudio::perplexity |  | Perplexity | HTML | source | R code