R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'fixest'

fixest::collinearity |  | On collinearity | HTML | source | R code
fixest::exporting_tables |  | Exporting estimation tables | HTML | source | R code
fixest::fixest_walkthrough |  | fixest introduction | HTML | source | R code
fixest::multiple_estimations |  | Multiple estimations | HTML | source | R code
fixest::standard_errors |  | On standard-errors | HTML | source | R code