tweak slides mention

README.md

@@ -13,6 +13,10 @@ The framework comes with a powerful feature set including [nested slides](https:
 
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+Want to create reveal.js presentation in a graphical editor? Try <https://slides.com>. It's made by the same people behind reveal.js.
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 ### Sponsors
 Hakim's open source work is supported by <a href="https://github.com/sponsors/hakimel">GitHub sponsors</a>. Special thanks to:
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@@ -51,14 +55,6 @@ Hakim's open source work is supported by <a href="https://github.com/sponsors/ha
 - 🖌 [Try the visual editor for reveal.js at Slides.com](https://slides.com/)
 - 🎬 [Watch the reveal.js video course (paid)](https://revealjs.com/course)
 
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-### Online Editor
-Want to create your presentation using a visual editor? Try the official reveal.js presentation platform for free at [Slides.com](https://slides.com). It's made by the same people behind reveal.js.
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   MIT licensed | Copyright © 2011-2022 Hakim El Hattab, https://hakim.se