course dates updated

Author: oliviakowalczyk

docs/courses/fmri_vbm/index.md

@@ -5,7 +5,7 @@
 
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-    April 2025, **in-person**. | [Registration is now open.](https://onlinestore.ucl.ac.uk/conferences-and-events/faculty-of-brain-sciences-c07/ucl-institute-of-neurology-d07/d07-statistical-parametric-mapping-for-fmri-mrivbm-april-2025)
+    23-25 April 2025, **in-person**. | [Registration is now open.](https://onlinestore.ucl.ac.uk/conferences-and-events/faculty-of-brain-sciences-c07/ucl-institute-of-neurology-d07/d07-statistical-parametric-mapping-for-fmri-mrivbm-april-2025)
 
     October 2025, **online**. | More details will be announced soon.
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