FOSDEM slides fix typo

Signed-off-by: Manuel Rego Casasnovas <[email protected]>

Author: mrego

slides/2026-02-fosdem-servo-web-platform.md

@@ -324,7 +324,7 @@ Looking into **growing a healthy community around the project**
 
 **[`floss.social/@servo`](https://floss.social/@servo)**
 
-**[`bsky.app/profile/servo.org`](bsky.app/profile/servo.org)**
+**[`bsky.app/profile/servo.org`](https://bsky.app/profile/servo.org)**
 
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