diff --git a/src/lab/Courses aligned.html b/src/lab/Courses aligned.html
index d70b9c529..1081d2290 100644
--- a/src/lab/Courses aligned.html
+++ b/src/lab/Courses aligned.html
@@ -57,15 +57,15 @@
diff --git a/src/lab/Experiments.html b/src/lab/Experiments.html
index 8e523316d..9aaab805a 100644
--- a/src/lab/Experiments.html
+++ b/src/lab/Experiments.html
@@ -57,15 +57,15 @@
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index 451805713..52db19824 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -58,15 +58,15 @@
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index 2f745391b..4dd0f0f23 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -61,12 +61,12 @@
diff --git a/src/lab/Pre-requisites.html b/src/lab/Pre-requisites.html
index 93efadd85..c91ca0713 100644
--- a/src/lab/Pre-requisites.html
+++ b/src/lab/Pre-requisites.html
@@ -57,15 +57,15 @@
diff --git a/src/lab/Target audience.html b/src/lab/Target audience.html
index 689298e15..3941c2706 100644
--- a/src/lab/Target audience.html
+++ b/src/lab/Target audience.html
@@ -57,15 +57,15 @@
-->
diff --git a/src/lab/index.html b/src/lab/index.html
index 0a77617cc..d2e0ddc58 100644
--- a/src/lab/index.html
+++ b/src/lab/index.html
@@ -60,12 +60,12 @@