fix style

Signed-off-by: Takamasa Horibe <[email protected]>

README.md

@@ -4,8 +4,6 @@ Welcome to Autoware.universe! This platform is a pivotal element within the core
 
 ![autoware_universe_front](docs/assets/images/autoware_universe_front.png)
 
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 The code and documentation managed here represent a vital part of the Autoware ecosystem. To gain a comprehensive understanding of the entirety of Autoware, please visit the [Autoware Documentation](https://autowarefoundation.github.io/autoware-documentation/).
 
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 For detailed documents of Autoware Universe components, see [Autoware Universe Documentation](https://autowarefoundation.github.io/autoware.universe/) deployed by MKDocs.