quick and dirty update of locations shared on mattermost

Author: SNeuroble

data/locations.yaml

@@ -65,9 +65,39 @@ events:
   #   image: vienna.png
   #   image_caption: "Image credit: [**Brainhack Vienna**](https://brainhack-vienna.github.io/)"
   #   publishDate: "2025-01-22"
-  - title: Brainhack Test
+  - title: Precision Brain & Mental Health Hack Boston
+    format: In person
+    display: true
+    date: '2025-10-28'
+    date_end: '2025-10-30'
+  - title: Brainhack Donostia
+    format: In person
+    display: true
+    date: '2025-11-19'
+    date_end: '2025-11-21'
+  - title: Brainhack Toronto
+    format: In person
+    display: true
+    date: '2026-01-19'
+    date_end: '2026-01-21'
+  - title: Brainhack Montreal
     format: In person
     display: true
+    date: '2026-01-28'
+    date_end: '2026-01-30'
+  - title: Brainhack Marseille
+    format: In person
+    display: true
+    date: '2026-01-28'
+    date_end: '2026-01-30'
+  - title: Brainhack Lucca
+    format: In person
+    display: true
+    date: '2025-12-02'
+    date_end: '2025-12-05'
+  - title: Brainhack Test
+    format: In person
+    display: false
     abstract:
     summary:
     organizers: