Add eslint & refactor code to ES6

Author: vs-cristian

.eslintrc.yml

@@ -0,0 +1,16 @@
+env:
+  browser: true
+  es6: true
+extends:
+  - airbnb-base
+  - prettier
+globals:
+  Atomics: readonly
+  SharedArrayBuffer: readonly
+parserOptions:
+  ecmaVersion: 11
+  sourceType: module
+rules:
+  no-console: off
+  import/prefer-default-export: off
+  no-param-reassign: off

.gitignore

@@ -1,2 +1,3 @@
 node_modules
+lib
 .idea

.npmignore

@@ -0,0 +1 @@
+src

README.md

@@ -35,7 +35,7 @@ you can enter the name of the component and configure the generation of the file
 When creating a react component, you are given the choice to modificate the component parts,
 such as connecting the `useState`, `useEffect`, `propTypes` and so on.
 
-![Demo](assets/demo.png)
+![Demo](https://i.imgur.com/MVFvUq5.png)
 
 ## Configration file
 
@@ -63,4 +63,4 @@ Example:
 
 ## License
 
-Generate React CLI is open source software [licensed as MIT](https://github.com/cristians953/react-codegen/blob/master/LICENSE).
+React CodeGen CLI is open source software [licensed as MIT](https://github.com/cristians953/react-codegen/blob/master/LICENSE).