Merge pull request #1090 from InnerSourceCommons/adding-pdf-to-Summit-sponsorship

adding pdf to Sponsorship page

Author: rrrutledge

content/en/events/isc-2025.md

@@ -97,6 +97,10 @@ September – Communication from the InnerSource Commons Summit team on status u
 <br /> -->
 
 ## Why Sponsor?
+
+**[Unlock Exclusive Sponsorship Opportunities](/documents/innersource_commons_sponsorpresentation.pdf)**
+
+
 We sincerely appreciate your interest in sponsoring the InnerSource Commons Summit 2025. This landmark event celebrates our 10th anniversary and will take place simultaneously across three global locations - Yokohama, Berlin, and New York - on Thursday, November 13th, 2025.
 
 #### A Unique Global Experience