fix braces for img

Author: nlharris

content/page/bosc-2026.md

@@ -79,7 +79,7 @@ You can also apply for an [OBF Event Award](/event-awards/); the deadline is Apr
 
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-![Scott Hunter and Nomi Harris point to BOSC 2024 poster)[img/2025/2025-gigascience-sponsors.jpg]
+![Scott Hunter and Nomi Harris point to BOSC 2024 poster](img/2025/2025-gigascience-sponsors.jpg)
 
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