Fix typo on event listing for RustConf (#406)

* Added 'img/news/2023-03-06-rustconf-cfp/rustconf.jpeg' via CloudCannon

* Updated 1 file via CloudCannon.

* Updated 1 file via CloudCannon.

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Co-authored-by: Gracie Gregory <[email protected]>

Author: cloudcannon[bot]

events/rustconf.md

@@ -9,7 +9,9 @@ tags:
   - live
 layout: layouts/event.njk
 ---
-## Learn more about RustConf 2023, view the program, and register here: &nbsp;<a target="_blank" href="https://rustconf.com">https://rustconf.com</a>.&nbsp;
+## <img src="/img/news/2023-03-06-rustconf-cfp/rustconf.jpeg" width="580" height="193" />
+
+## Learn more about RustConf 2023, view the program, and register here:&nbsp;<a target="_blank" href="https://rustconf.com">https://rustconf.com</a>.&nbsp;