diff --git a/research-group-presi/images/Blackout_of_wikipediade_by_Wikimedia_Deutschland_-_March_2019.png b/research-group-presi/images/Blackout_of_wikipediade_by_Wikimedia_Deutschland_-_March_2019.png
new file mode 100644
index 0000000000000000000000000000000000000000..cdbedb99a98fd3f7f4d358e9fbe8a3ba631b5403
Binary files /dev/null and b/research-group-presi/images/Blackout_of_wikipediade_by_Wikimedia_Deutschland_-_March_2019.png differ
diff --git a/research-group-presi/slides.md b/research-group-presi/slides.md
index ad4c3a7350925bcca3854c6a665b7acf8cdfe6a0..3652116a2811933d5e896dda454a9805c80408c9 100644
--- a/research-group-presi/slides.md
+++ b/research-group-presi/slides.md
@@ -431,7 +431,7 @@ check memos
 
 ---
 
-# Bigger picture: Upload filters
+## Bigger picture: Upload filters
 
 <img src="images/Blackout_of_wikipediade_by_Wikimedia_Deutschland_-_March_2019.png" height="500" alt="blackout German Wikipedia March 2019">
 <small>[https://upload.wikimedia.org/wikipedia/commons/c/c5/Blackout_of_wikipedia.de_by_Wikimedia_Deutschland_-_March_2019.png](https://upload.wikimedia.org/wikipedia/commons/c/c5/Blackout_of_wikipedia.de_by_Wikimedia_Deutschland_-_March_2019.png)</small>