diff --git a/.gitmodules b/.gitmodules
index 47a25b0..b4d18a4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -43,3 +43,6 @@
 [submodule "JP"]
 	path = JP
 	url = https://github.com/Jan-PieterBaert/advent-of-code
+[submodule "Niko"]
+	path = Niko
+	url = https://github.com/niknetniko/AdventOfCode
diff --git a/Niko b/Niko
new file mode 160000
index 0000000..def4eb4
--- /dev/null
+++ b/Niko
@@ -0,0 +1 @@
+Subproject commit def4eb40e78d90b6b5f962ba78ee2da0b3d091b4
diff --git a/README.md b/README.md
index a98ff30..a3700bc 100644
--- a/README.md
+++ b/README.md
@@ -21,20 +21,20 @@
 
 * repo clonen:
 
-    ```bash
+    ```sh
     git clone --recursive git@github.com:ZeusWPI/Advent-of-Code-Aggregator.git
     ```
 
 * nieuwe toevoegen:
 
-    ```bash
+    ```sh
     git submodule add <link zoals in tabel> <naam zoals in tabel>
     git commit -m 'hey guys ik heb een repo toegevoegd'
     ```
 
 * bestaande submodules updaten:
 
-    ```bash
+    ```sh
     git submodule foreach git fetch origin
     git submodule foreach git reset --hard origin/HEAD > /dev/null 2>&1
     git add * # oh no
@@ -43,6 +43,6 @@
 
 * benchmarks uitvoeren:
 
-    ```bash
+    ```sh
     git submodule foreach ../benchmark <day> <part>
     ```