Add composer directory

Author: branberry

composer/composer.json

@@ -0,0 +1,18 @@
+{
+  "name": "mongodb/docs-php-library",
+  "description": "MongoDB PHP Library Documentation",
+  "require": {
+    "ext-mongodb": "^1.19",
+    "mongodb/mongodb": "^1.19"
+  },
+  "require-dev": {
+    "doctrine/coding-standard": "^12.0",
+    "squizlabs/php_codesniffer": "^3.7",
+    "vimeo/psalm": "^5.13"
+  },
+  "config": {
+    "allow-plugins": {
+      "dealerdirect/phpcodesniffer-composer-installer": true
+    }
+  }
+}