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README.md

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+
 # fastify-dotenv
-<h1 align="center">fastify-dotenv</h1>
-<p align="center"><project-description></p>
+
+fastify-dotenv iterate over your .env file and converts it to a **decorator** named *env*
+
+
+
+
+## simple demo
+
+
 <img src="assets/image.png">
+
+## Usage/Examples
+
+```javascript
+
+const Fastify = require('fastify').fastify; // i used v3.21.6 here
+const fastify = Fastify();
+const dotenv = require('@hadimardanian/fastify-dotenv');
+
+fastify.register(dotenv, {
+    path: '/config/.env', // (1)
+    decorator: 'env' // (2)
+})
+
+fastify.listen(4000, function serverListen() {
+    console.log('server is running on port ' + fastify.env)
+})
+
+```
+
+
+
+## some tips
+
+- (1) **path** : the "**/**" means the root of project folder. it must be at the beginning of path
+- (2) **decorator** : name it whatever you want, if omitted it will be "**env**"
+- the "**.env**" file: Its name could be everything. but its format must be plain text and content must be like following:
+
+
+
+### .env file content
+
+> port=4000
+
+> mngodb=mongodb://localhost/mydb
+
+> NODE_ENV=production
+
+