Update README.md

README.md

 wikstraktor
 ===========
 
-A python tool to query the [wiktionary](https://wiktionary.org) and extract structured lexical data.
+A python tool to query the [wiktionary](https://wiktionary.org) and extract [structured lexical data](https://gitlab.liris.cnrs.fr/lex-game/wikstraktor/-/wikis/Entry-structure).
 
 ## Dependencies
 This project does depend on python packages.