update readme: move the gif on the top of readme
[![Chat on telegram](https://badgen.net/badge/icon/join?icon=telegram&label=usergroup)](https://t.me/iredis_users)
[![Open in Cloud Shell](https://badgen.net/badge/run/GoogleCloudShell/blue?icon=terminal)](https://console.cloud.google.com/cloudshell/editor?cloudshell_git_repo=https://github.com/laixintao/iredis&cloudshell_print=docs/cloudshell/run-in-docker.txt)
+![demo](./docs/assets/demo.svg)
IRedis is a terminal client for redis with auto-completion and syntax highlighting. IRedis lets you type Redis commands smoothly, and displays results in a user-friendly format.
IRedis is an alternative for redis-cli. In most cases, IRedis behaves exactly the same as redis-cli. Besides, it is safer to use IRedis on production servers than redis-cli: IRedis will prevent accidentally running dangerous commands, like `KEYS *` (see [Redis docs / Latency generated by slow commands](https://redis.io/topics/latency#latency-generated-by-slow-commands)).
-![demo](./docs/assets/demo.svg)
## Features
