Link to new vignette translations

Author: aitap

vignettes/datatable-importing.Rmd

@@ -18,6 +18,7 @@ h2 {
 Translations of this document are available in
 
 * [French](https://rdatatable.gitlab.io/data.table/articles/fr/datatable-importing.html)
+* [Russian](https://rdatatable.gitlab.io/data.table/articles/ru/datatable-importing.html)
 
 This document is focused on using `data.table` as a dependency in other R packages. If you are interested in using `data.table` C code from a non-R application, or in calling its C functions directly, jump to the [last section](#non-r-api) of this vignette.
 

vignettes/datatable-intro.Rmd

@@ -12,6 +12,7 @@ vignette: >
 Translations of this document are available in
 
 * [French](https://rdatatable.gitlab.io/data.table/articles/fr/datatable-intro.html)
+* [Russian](https://rdatatable.gitlab.io/data.table/articles/ru/datatable-intro.html)
 
 ```{r, echo = FALSE, message = FALSE}
 require(data.table)

vignettes/datatable-reshape.Rmd

@@ -12,6 +12,7 @@ vignette: >
 Translations of this document are available in
 
 * [French](https://rdatatable.gitlab.io/data.table/articles/fr/datatable-reshape.html)
+* [Russian](https://rdatatable.gitlab.io/data.table/articles/ru/datatable-reshape.html)
 
 ```{r, echo = FALSE, message = FALSE}
 require(data.table)