added README instructions

backend/README.md

@@ -1,2 +1,15 @@
 # EDUC-SDCI
+
 School and District Contact Information application
+
+### Local Setup
+
+**`Step 1`**. make sure you have Node.js 14.19.0 installed in your local machine. if not download from here https://nodejs.org/en/
+
+**`Step 2`**. Add NODE_ENV=local as environment variable.
+
+**`Step 4`**. Ask for local.json file which contains all the configs from teammate (Copy local.json into /backend/src/config folder), or create it by following config maps from oc console.
+
+**`Step 5`**. run `npm install` in command line from backend folder, to install required dependencies.
+
+**`Step 6`**. run `npm run serve` in command line from backend folder, to run the app.