diff --git a/data-structures.Rmd b/data-structures.Rmd
index 61d4948..4abb782 100644
--- a/data-structures.Rmd
+++ b/data-structures.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Data structures
+---
 
 # Data structures
 
diff --git a/datetimes.Rmd b/datetimes.Rmd
index bbfae71..a3411e3 100644
--- a/datetimes.Rmd
+++ b/datetimes.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Dates and times
+---
 
 # Dates and times
 
diff --git a/eda.Rmd b/eda.Rmd
index 541eaa2..f03ea4f 100644
--- a/eda.Rmd
+++ b/eda.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Exploratory data analysis
+---
 
 # Exploratory data analysis
 
diff --git a/functions.Rmd b/functions.Rmd
index 399e72f..1e74d09 100644
--- a/functions.Rmd
+++ b/functions.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Expressing yourself in code
+---
 
 # Expressing yourself in code
 
diff --git a/import.Rmd b/import.Rmd
index 5e4eb8e..518ec6f 100644
--- a/import.Rmd
+++ b/import.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Data import
+---
 
 # Data import
 
diff --git a/lists.Rmd b/lists.Rmd
index 16b2b5b..8350760 100644
--- a/lists.Rmd
+++ b/lists.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Lists
+---
 
 # Lists
 
diff --git a/model-assess.Rmd b/model-assess.Rmd
index ed35000..4502580 100644
--- a/model-assess.Rmd
+++ b/model-assess.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Model assessment
+---
 
 # Model assessment
 
diff --git a/model-vis.Rmd b/model-vis.Rmd
index b6b2a16..afcfcbc 100644
--- a/model-vis.Rmd
+++ b/model-vis.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Model visualisation
+---
 
 # Model visualisation
 
diff --git a/model.Rmd b/model.Rmd
index 7b4316c..f611a65 100644
--- a/model.Rmd
+++ b/model.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Model
+---
 
 # Model
 
diff --git a/rmarkdown.Rmd b/rmarkdown.Rmd
index 2030a23..58c0809 100644
--- a/rmarkdown.Rmd
+++ b/rmarkdown.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: R Markdown
+---
 
 # R Markdown
 
diff --git a/shiny.Rmd b/shiny.Rmd
index a0c4073..1d857ed 100644
--- a/shiny.Rmd
+++ b/shiny.Rmd
@@ -1,5 +1,6 @@
-----
+---
 layout: default
-----
+title: Shiny
+---
 
 # Shiny
diff --git a/strings.Rmd b/strings.Rmd
index ce79688..fa48b37 100644
--- a/strings.Rmd
+++ b/strings.Rmd
@@ -1,8 +1,9 @@
-----
+---
 layout: default
-----
+title: Strings
+---
 
-# String manipulation
+# Strings
 
 ```{r setup-strings, include = FALSE}
 library(stringr)
diff --git a/tidy.Rmd b/tidy.Rmd
index 45ae7db..9fc6ece 100644
--- a/tidy.Rmd
+++ b/tidy.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Tidy data
+---
 
 # Tidy data
 
diff --git a/transform.Rmd b/transform.Rmd
index 5d0f501..54e3a0b 100644
--- a/transform.Rmd
+++ b/transform.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Transform
+---
 
 # Data transformation {#transform}
 
diff --git a/visualize.Rmd b/visualize.Rmd
index 458e8ff..d948e0d 100644
--- a/visualize.Rmd
+++ b/visualize.Rmd
@@ -1,6 +1,7 @@
-----
+---
 layout: default
-----
+title: Visualize
+---
 
 # Data visualisation