diff --git a/.gitignore b/.gitignore
index 5b6a065..4ff8879 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 .Rhistory
 .RData
 .Ruserdata
+*.zip
\ No newline at end of file
diff --git a/README.md b/README.md
index a91409b..b1b41a6 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,8 @@ https://lyondataviz.github.io/teaching/lyon1-m2/2016/pdfs/1_introduction.pdf
 
 [Les données spatiales avec R](https://maeltheuliere.github.io/rspatial/creer-des-cartogrammes.html)
 
+[https://vallandingham.me/textvis-talk/#4]()
+
 
 ## Web
 [WTF Visualizations](https://viz.wtf)