1 files changed, 5 insertions, 1 deletions
diff --git a/README.md b/README.md
index 8d40a6f..62ae1a0 100644
--- a/README.md
+++ b/README.md
@@ -236,7 +236,11 @@ let numbers = [1, 2, 4]
 List elements can be of any type, but all elements of a particular list must have the same type.
 They can be concatenated using the `concat` function, which takes a list of lists as argument:
 ```
-let list = concat [[1], [2, 3], [4]] # = [1, 2, 3, 4,]
+let list = concat [[1], [2, 3], [4]]  # = [1, 2, 3, 4]
+```
+Or with the `++` operator:
+```
+let list = [1] ++ [2, 3] ++ [4]  # = [1, 2, 3, 4]
 ```
 
 ### Built-in commands