Update activities.yml

Author: Jina-Kim

_data/activities.yml

@@ -1,3 +1,30 @@
+- image: images/activities/202402_criticalmaas.jpg
+- image: images/activities/2023_birthdays.png
+- image: images/activities/202311_sigspatial_8.jpg
+- image: images/activities/202311_sigspatial_6.jpg
+- image: images/activities/202311_sigspatial_5.jpg
+- image: images/activities/202311_sigspatial_3.jpg
+- image: images/activities/202311_sigspatial_2.png
+- image: images/activities/202311_sigspatial_2.jpg
+- image: images/activities/202311_sigspatial_1.png
+- image: images/activities/202306_ucgis_1.jpg
+- image: images/activities/202306_ucgis.jpg
+- image: images/activities/202304_stanford_5.jpg
+- image: images/activities/202304_stanford_3.jpg
+- image: images/activities/202304_stanford_1.jpg
+- image: images/activities/202304_stanford.jpg
+- image: images/activities/202304_sdm.jpg
+- image: images/activities/202303_aag_2.jpeg
+- image: images/activities/202303_aag_1.jpeg
+- image: images/activities/202303_aag.jpeg
+- image: images/activities/2023_lab_welcome.jpg
+- image: images/activities/2023_lab_seminars.jpg
+- image: images/activities/202301_india.png
+- image: images/activities/202211_sigspatial_1.jpg
+- image: images/activities/202211_sigspatial.jpg
+- image: images/activities/2022_bbq.jpg
+- image: images/activities/2022_lab_welcome.jpeg
+- image: images/activities/2021_hotpot.jpg
 - image: images/activities/19.jpg
 - image: images/activities/20.jpeg
 - image: images/activities/21.jpeg