add composer.json file

Author: petitphp

composer.json

@@ -0,0 +1,18 @@
+{
+  "name": "petitphp/facetwp-monthly",
+  "description": "Filter your posts by monthly archive",
+  "type": "wordpress-plugin",
+  "license": "GPL2+",
+  "keywords": ["WordPress", "FacetWP"],
+  "authors": [
+    {
+      "name": "Clément Boirie",
+      "homepage": "https://github.com/petitphp",
+      "role": "Developer"
+    }
+  ],
+  "support": {
+    "source": "https://github.com/petitphp/facetwp-monthly",
+    "issues": "https://github.com/petitphp/facetwp-monthly/issues"
+  }
+}