message: doc: adjust image url in readme  [skip ci]
diff: @@ -13,11 +13,11 @@ Nextclade
  > </p>
  <p align="center">
  - <a href="docs/assets/ui.gif" target="_blank" rel="noopener noreferrer" alt="Link to animated screenshot of the application, showcasing the user interface on main page">
  + <a href="https://raw.githubusercontent.com/nextstrain/nextclade/master/docs/assets/ui.gif" target="_blank" rel="noopener noreferrer" alt="Link to animated screenshot of the application, showcasing the user interface on main page">
  <img
  width="100%"
  height="auto"
  - src="docs/assets/ui.gif"
  + src="https://raw.githubusercontent.com/nextstrain/nextclade/master/docs/assets/ui.gif"
  alt="Animated screenshot of the application, showcasing the user interface on main page"
  />
  </a>
  