Add groundcover and codetalent as sponsors and add platinum sponsorship tier.

Author: swmonkeys

data/events/2026/denver/main.yml

@@ -91,8 +91,10 @@ organizer_email: "denver@devopsdays.org"
 # List all of your sponsors here along with what level of sponsorship they have.
 # Check data/sponsors/ to use sponsors already added by others.
 sponsors:
-#   - id: samplesponsorname
-#     level: gold
+  - id: groundcover
+    level: silver
+  - id: code-talent
+    level: community
 #  #  url: http://mysponsor.com/?campaign=me # Use this if you need to over-ride a sponsor URL.
 #   - id: arresteddevops
 #     level: community
@@ -104,6 +106,8 @@ sponsors_accepted : "yes" # Whether you want "Become a XXX Sponsor!" link
 # unlimited sponsors, omit the max attribute or set it to 0. If you want to prevent all
 # sponsorship for a specific level, it is best to remove the level.
 sponsor_levels:
+  - id: platinum
+    label: Platinum
   - id: gold
     label: Gold
 #    max: 12