Add Narwahls project to calendars (#769)

* add narwahls to calendars

* add urls and correct community call time slot

* fix link

Author: marenwestermann

calendars/narwhals.yaml

@@ -0,0 +1,58 @@
+name: Narhwals Community Calendar
+events:
+  - summary: Narwhals Community Call
+    description: |
+      Community call happening every 4 weeks on Fridays. All welcome to attend!
+
+      Meeting notes:  https://hackmd.io/@mntOORP3TCesJJyvg-IdFQ/BklDRGAM1e
+    begin: 2025-06-20 14:30:00 +00:00
+    end: 2025-06-20 15:00:00 +00:00
+    url: https://meet.google.com/igm-dtqg-mrz
+    repeat:
+      interval:
+        weeks: 4
+      byweekday: fr
+      until: 2026-07-01 00:00:00 +00:00
+
+  - summary: Narwhals Live Stream
+    description: |
+      Narwhals development livestream. Join us as we develop it!
+      Chat, ask questions, or just follow along.
+    begin: 2025-06-13 14:00:00 +00:00
+    end: 2025-06-13 16:00:00 +00:00
+    url: https://www.youtube.com/@quansight/streams
+    repeat:
+      interval:
+        weeks: 2
+      byweekday: fr
+      until: 2026-07-01 00:00:00 +00:00
+
+  - summary: Narwhals Study Group
+    description: |
+      Biweekly study group meeting. All are welcome!
+
+      Our study group aims to deepen our understanding of Narwhals.
+      Each week, we share issues we've tackled or projects we've "narwhalified."
+    begin: 2025-06-06 15:00:00 +00:00
+    end: 2025-06-06 16:00:00 +00:00
+    url: https://meet.google.com/rce-kzwp-opa
+    repeat:
+      interval:
+        weeks: 2
+      byweekday: fr
+      until: 2026-07-01 00:00:00 +00:00
+
+  - summary: Narwhals Study Group
+    description: |
+      Biweekly study group meeting. All are welcome!
+
+      Our study group aims to deepen our understanding of Narwhals.
+      Each week, we share issues we've tackled or projects we've "narwhalified."
+    begin: 2025-06-13 13:00:00 +00:00
+    end: 2025-06-13 14:00:00 +00:00
+    url: https://meet.google.com/rce-kzwp-opa
+    repeat:
+      interval:
+        weeks: 2
+      byweekday: fr
+      until: 2026-07-01 00:00:00 +00:00