diff --git a/.markdownlint-cli2.jsonc b/.markdownlint-cli2.jsonc
new file mode 100644
index 0000000..56cd87c
--- /dev/null
+++ b/.markdownlint-cli2.jsonc
@@ -0,0 +1,12 @@
+{
+  // files to lint
+  "globs": [
+    "readme.md"
+  ],
+  // linting rules
+  "config": {
+    "MD013": {
+      "line_length": 120
+    }
+  }
+}