diff --git a/docs/source/conf.py b/docs/source/conf.py
index 0a27d9d..5addf81 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -135,4 +135,5 @@
     "https://keras.io/",
     "https://wiki.ucl.ac.uk",
     "https://www.dropbox.com",
+    "https://neuroinformatics.dev/slides-SWC-PhD-intro/#/section",
 ]