site/landing: Add Seagate partner logo

Signed-off-by: Garret Kelly <gdk@google.com>
diff --git a/site/landing/config.toml b/site/landing/config.toml
index 9f6dc3d..9d1714b 100644
--- a/site/landing/config.toml
+++ b/site/landing/config.toml
@@ -21,6 +21,7 @@
 partner_google = "https://opensource.google/"
 partner_nuvoton = "https://www.nuvoton.com"
 partner_wd = "https://www.westerndigital.com/"
+partner_seagate = "https://www.seagate.com"
 
 [[deployment.targets]]
 name = "staging"
diff --git a/site/landing/layouts/index.html b/site/landing/layouts/index.html
index 0baf1d1..08517d0 100644
--- a/site/landing/layouts/index.html
+++ b/site/landing/layouts/index.html
@@ -234,7 +234,7 @@
     </section>
 
     <section id="partners" class="partners light-bg">
-      <h2 class="h2">Founding partners</h2>
+      <h2 class="h2">Partners</h2>
       <div class="partner-list">
         <a href="{{ .Site.Params.partner_lowrisc }}" class="partner" target="_blank">
           <img src="https://static.opentitan.org/img/partners/lowrisc.svg" alt="lowRISC">
@@ -254,6 +254,9 @@
         <a href="{{ .Site.Params.partner_wd }}" class="partner" target="_blank">
           <img src="https://static.opentitan.org/img/partners/western-digital.svg" alt="Western Digital">
         </a>
+        <a href="{{ .Site.Params.partner_seagate }}" class="partner" target="_blank">
+          <img src="https://static.opentitan.org/img/partners/seagate.svg" alt="Seagate">
+        </a>
       </div>
 
       <div class="partner-quote">