diff --git a/.gitignore b/.gitignore
index 8724bc8..6933174 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
+docs/output/
+docs/composer.lock
+docs/vendor/
 phpunit.xml
 vendor/
 .phpcs-cache
diff --git a/docs/composer.json b/docs/composer.json
new file mode 100644
index 0000000..77899ee
--- /dev/null
+++ b/docs/composer.json
@@ -0,0 +1,6 @@
+{
+    "type": "project",
+    "require": {
+        "doctrine/docs-builder": "^1.0.3"
+    }
+}