message: chore: update logo alt text
diff: <p align="center">
  - <img alt="Rome, logo of an ancient Greek spartan helmet" src="https://github.com/romefrontend/rome/raw/main/assets/PNG/logo_transparent.png" width="700">
  + <img alt="Rome's logo depicting an ancient Roman arch with the word Rome to its side" src="https://github.com/romefrontend/rome/raw/main/assets/PNG/logo_transparent.png" width="700">
  </p>
  <!-- This intro is synced with the website via the `./rome run scripts/generate-files/website-intro` script. Make sure you run it after modifying anything between these comments. -->
  