Update the About page to reflect the EC 2025 election

Author: jasongrout

about.html

@@ -305,6 +305,7 @@
     photo: JasonGrout.jpeg
     affiliation: Databricks
     gh_handle: jasongrout
+    linkedin: https://www.linkedin.com/in/jason-grout/
     personal: https://jasongrout.org/
   - name: Jessica Hamrick
     photo: JessicaHamrick.jpeg
@@ -355,19 +356,17 @@
     photo: AfshinDarian.jpeg
     affiliation: QuantStack
     gh_handle: afshin
-  - name: Brian Granger
-    photo: BrianGranger.jpeg
-    affiliation: Amazon Web Services
-    gh_handle: ellisonbg
   - name: Jason Grout
     photo: JasonGrout.jpeg
     affiliation: Databricks
     gh_handle: jasongrout
+    linkedin: https://www.linkedin.com/in/jason-grout/
     personal: https://jasongrout.org/
-  - name: Fernando Pérez
-    photo: FernandoPerez.jpeg
-    affiliation: UC Berkeley
-    gh_handle: fperez
+  - name: Chris Holdgraf
+    photo: Chris_Holdgraf.png
+    gh_handle: choldgraf
+    twitter_handle: choldgraf
+    personal: http://chrisholdgraf.com
   - name: Ana Ruvalcaba
     photo: Ana_Ruvalcaba.jpg
     affiliation: Cal Poly, San Luis Obispo
@@ -377,6 +376,11 @@
     gh_handle: Zsailer
     affiliation: Apple
     linkedin: https://linkedin.com/in/zach-sailer-8a1472151/
+  - name: Rick Wagner
+    photo: RickWagner.png
+    affiliation: UC San Diego
+    linkedin: https://www.linkedin.com/in/rpwagner
+    gh_handle: rpwagner
 
 software_steering_council:
   - name: Sylvain Corlay
@@ -452,6 +456,7 @@
     photo: JasonGrout.jpeg
     affiliation: Databricks
     gh_handle: jasongrout
+    linkedin: https://www.linkedin.com/in/jason-grout/
     personal: https://jasongrout.org/
   - name: Tim George
     photo: TimGeorge.jpeg
@@ -478,6 +483,7 @@
   photo: JasonGrout.jpeg
   affiliation: Databricks
   gh_handle: jasongrout
+  linkedin: https://www.linkedin.com/in/jason-grout/
   personal: https://jasongrout.org/
 - name: Ana Ruvalcaba
   photo: Ana_Ruvalcaba.jpg