Update README.md

Author: mikhail-vl

README.md

@@ -5,9 +5,9 @@
 [![Grafana 8](https://img.shields.io/badge/Grafana-8-orange)](https://www.grafana.com)
 [![Redis Data Source](https://img.shields.io/badge/dynamic/json?color=blue&label=Redis%20Data%20Source&query=%24.version&url=https%3A%2F%2Fgrafana.com%2Fapi%2Fplugins%2Fredis-datasource)](https://grafana.com/grafana/plugins/redis-datasource) [![Redis Application](https://img.shields.io/badge/dynamic/json?color=blue&label=Redis%20Application&query=%24.version&url=https%3A%2F%2Fgrafana.com%2Fapi%2Fplugins%2Fredis-app)](https://grafana.com/grafana/plugins/redis-app)
 
-The Pop-up store is using [Redis Streams](https://redis.io/topics/streams-intro), [RedisTimeSeries](https://oss.redis.com/redistimeseries/), [RedisGears](https://oss.redis.com/redisgears/) and [Redis plugins](https://redisgrafana.github.io) to visualize data pipeline in Grafana.
+## Introduction
 
-## How it works
+The Pop-up store is using [Redis Streams](https://redis.io/topics/streams-intro), [RedisTimeSeries](https://oss.redis.com/redistimeseries/), [RedisGears](https://oss.redis.com/redisgears/) and [Redis plugins](https://redisgrafana.github.io) to visualize data pipeline in Grafana.
 
 ![Diagram](https://github.com/RedisTimeSeries/redis-pop-up-store/blob/master/images/pop-up.png)