R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'LLMR'

LLMR::about-schema |  | JSON output vs. schema-validated output in LLMR | HTML | source | R code
LLMR::chat-basics |  | Simple chat with LLMR | HTML | source | R code
LLMR::experiments |  | Small experiment with LLMR | HTML | source | R code
LLMR::presidential_embeddings |  | Presidential Speech Analysis with Embeddings | HTML | source | R code
LLMR::tidy-and-structured |  | Tidy pipelines and structured output | HTML | source | R code