update build script

package.json

@@ -5,7 +5,7 @@
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "scripts": {
-    "build": "tsc -p tsconfig.json",
+    "build": "tsc -p src/tsconfig.json",
     "prepublish": "npm run build",
     "build-test": "rm -rf test-dist/ && tsc -p src/tsconfig.test.json",
     "test": "npm run build-test && ava test-dist/**/*.test.js",