Update pangeo-showcase.rst

docs/pangeo-showcase.rst

@@ -40,11 +40,17 @@ Winter/Spring 2024 Showcase
      - Nihanth Cherukuru
      - `VAPOR Python: A 3D data visualization Python API for Earth Science datasets <https://discourse.pangeo.io/t/pangeo-showcase-vapor-python-a-3d-data-visualization-python-api-for-earth-science-datasets/4048>`_
    * - 2024-03-06 12PM EST
-     - Tim Hodson
-     - `What is the future of Pangeo Forge? <https://discourse.pangeo.io/t/pangeo-showcase-what-is-the-future-of-pangeo-forge/4059>`_
+     - David Stuebe
+     - `Optimizations for Kerchunk aggregation and Zarr I/O at scale for Machine Learning <https://discourse.pangeo.io/t/pangeo-showcase-optimizations-for-kerchunk-aggregation-and-zarr-i-o-at-scale-for-machine-learning/4074>`_
+   * - 2024-03-13 4PM EDT
+     - Luis Lopez
+     - `HDF at the speed of Zarr <https://discourse.pangeo.io/t/pangeo-showcase-hdf-at-the-speed-of-zarr/4084>`_
    * - 2024-05-01 12PM EDT
      - Max Jones
      - Pangeo ML: Open source tools and pipelines for cloud-optimized machine learning
+   * - TBD
+     - Tim Hodson
+     - `What is the future of Pangeo Forge? <https://discourse.pangeo.io/t/pangeo-showcase-what-is-the-future-of-pangeo-forge/4059>`_
 
 Fall 2023 Showcase
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