diff --git a/.gitignore b/.gitignore
index c96066d..d8736ea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-/.DS_Store
\ No newline at end of file
+/.DS_Store
+/node_modules
\ No newline at end of file
diff --git a/README.md b/README.md
index 99744ca..4566cf4 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Check demo [https://giodelabarrera.github.io/js-calculator](https://giodelabarre
 
 ## Screenshot
 
-![](./screenshot.png)
+![](https://user-images.githubusercontent.com/1263588/110334220-cfe3fa80-8022-11eb-9d23-0073cba9b0e3.png)
 
 ## Usage
 
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..d930eb3
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,5 @@
+{
+  "name": "js-calculator",
+  "version": "1.0.0",
+  "lockfileVersion": 1
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..90beb2c
--- /dev/null
+++ b/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "js-calculator",
+  "version": "1.0.0",
+  "description": "Web calculator build with HTML, Grid CSS, Vanilla JS",
+  "main": "main.js",
+  "scripts": {
+    "build": "esbuild main.js --bundle --outfile=out.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/giodelabarrera/js-calculator.git"
+  },
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/giodelabarrera/js-calculator/issues"
+  },
+  "homepage": "https://github.com/giodelabarrera/js-calculator#readme",
+  "dependencies": {},
+  "devDependencies": {}
+}
diff --git a/screenshot.png b/screenshot.png
deleted file mode 100644
index 72ab8cb..0000000
Binary files a/screenshot.png and /dev/null differ