Add more info to README.md

README.md

@@ -2,20 +2,42 @@
 
 This is a simple indexer for initia.
 
-# How to use
+# Project setup
 
+### 1. Clone
 ```bash
-npm i
+$ git clone https://github.com/initia-labs/simple-indexer.git
 ```
 
+### 2. Install packages
 ```bash
-npm run start
+npm install
 ```
 
-# Configuration
+### 3. Setup the database
+Simple-indexer requires PostgreSQL as a backend database and [TypeORM](https://github.com/typeorm/typeorm) as an ORM.
 
+### 4. Configure Environment Variables
 | Name                    | Description                                    | Default                               |
 |-------------------------|------------------------------------------------|---------------------------------------|
-| SERVER_PORT             | Server port                                    | 6000                                  |
+| SERVER_PORT             | Server port                                    | 3000                                  |
+| MONITOR_INTERVAL        | Monitor interval                               | 100                                   |
 | LCD_URL                 | LCD URL                                        | 'http://localhost:1317'               |
 | RPC_URL                 | RPC URL                                        | 'http://localhost:26657'              |
+
+> We use [dotenv](https://github.com/motdotla/dotenv) for managing environment variable for development. See [sample of .env](.env_sample)
+
+# How to run
+
+### Developement
+```bash
+npm run dev
+```
+
+### Production
+```bash
+npm run start
+```
+
+# API documentation
+- Access UI from: `http://localhost:3000/swagger/`