home.md

@@ -2,6 +2,8 @@
 
 ## Columns
 
+A column slide can be defined by `{layout="columns"}` in the slide header and by defining the orientation and scope each column in subheaders with `{.left}`. `{.center}` (optional), or `{.right}` tags.
+
 ### Example:
 
 ```
@@ -9,7 +11,9 @@
 
 ## Optional column title {.left}
 
-## {.center}
+## Subheader in the left column
+
+## Optional center column {.center}
 
 ## {.right}