Update README.md

@@ -47,6 +47,38 @@ Contributions are what make the open source community such an amazing place to b
 4. Push to the Branch (`git push origin feature/AmazingFeature`)
 5. Open a Pull Request
 
+<!-- PROCESS  -->
+## Process
+1. Recevie city name by user
+-> <p><label>지역이름 : </label><input type="text" name="city" placeholder="Input city"></p>
+2. Get data from api
+-> url = Dust_URL+Dust_ServiceKey+Dust_URL2+item+Dust_Place;
+-> request(url,function(error,res,body){}
+3. Manufacture data
+->
+// ex) Dust_Month_2020
+async function Dust_Month_2020(Dust_Month_2020){
+    for(let i=0;i<Dust_Month_2020.length;i++)
+    {
+      await DelayNode_2020(Dust_Month_2020[i]);
+    }
+  }
+  Dust_Month_2020([202002,202003,202004,202005,202006]);
+4. All data is manufactured
+-> Return check = true
+5. Send data to ejs
+->  if(check == true){
+    res.render('index',{
+        Feb_Dust_2020,
+        Mar_Dust_2020,
+        April_Dust_2020,
+        May_Dust_2020,
+        June_Dust_2020,
+        City
+      })
+    }
+6. localhost:3000/city -> Result Page 
+
 <!-- CONTACT -->
 ## Contact