docs: delete unnecessary options. (#5599)

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/kind documentation
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#### What this PR does / why we need it:
同时使用 `-it` 和 `-d`，`-d` 会覆盖 `-it`，容器将会在后台运行，而 `-it` 参数请求的交互式会话和伪终端不会生效。


#### Which issue(s) this PR fixes:

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```release-note
None
```

README.md

@@ -26,7 +26,7 @@
 ## 快速开始
 
 ```bash
-docker run -it -d --name halo -p 8090:8090 -v ~/.halo2:/root/.halo2 halohub/halo:2.13
+docker run -d --name halo -p 8090:8090 -v ~/.halo2:/root/.halo2 halohub/halo:2.13
 ```
 
 以上仅作为体验使用，详细部署文档请查阅：<https://docs.halo.run/getting-started/install/docker-compose>