Update liquidsurfaces.md

Author: chenshenjoyful

liquidsurfaces.md

@@ -7,13 +7,22 @@ author: "Chen Shen"
 
 ## About the working group
 The Liquid Surface Working Group is a gathering of the teams operating the liquid surface scattering instruments at synchrotron and neutron facilities worldwide. We meet virtually every two or three months, usually on Tuesday between 4pm and 6pm to have exchanges on the progress but most importantly, the challenges and perspectives. Each meeting will be hosted by one team (rotating), and the host decides the agenda and the topic.
-Currently this working group includes (alphabetical order on the facilities)
+Currently this working group includes (alphabetical order on the facilities): APS/ChemMatCARS (U Chicago,UIC), BESSY II/ELISA (HZB,FHI), Diamond/I07, ESRF/ID10-SURF, ESS/FREIA, ILL/FIGARO, NSLS-II/12ID-OPLS, ORNL/LIQREF, PETRA III/P08-Langmuir GID, PETRA III/P08-LISA (U Kiel), Soleil/SIRIUS.
 
-## past meetings
+## scheduled meetings
 
 | date | host | topic | notes |
 | --- | --- | --- | --- |
-| test | test | test | test|
+| 2025.12.16 | ESRF/ID10-SURF | ID10-SURF | to come |
+| 2025.9 | BESSY II/ELISA | the future ELISA instrument of BESSY II - a soft X-ray / IR instrument for liquid surfaces and interfaces | n/a |
+| 2025.06 | PETRA III/P08 | Langmuir GID setup and pseudo reflectivity method - acquring XRR via single shot GIXS | n/a |
+| 2025.03 | Soleil/SIRIUS | SIRIUS beamline with video tour, and its new XRR option on liquid surface using deflecting mirror | n/a |
+| 2024.12 | NSLS-II/12ID-SMI-OPLS | OPLS with video tour | n/a |
+| 2024.09 | Ben Ocko (NSLS-II/12ID) | starting of the working group | n/a |
+
+## contact or if you want to join
+Chen Shen, PETRA III/P08: chen.shen@desy.de
+or directly: liquid-surface-scattering-working-group-request@desy.de