tweak this a bit based on some feedback. (FusionAuth#3138)

make it a little less 'in your face'

astro/src/components/quickstarts/QuickstartTshirtCTA.astro

@@ -1,15 +1,13 @@
 <section
-  class="flex flex-wrap border-indigo-400 border rounded p-2 gap-2 md:p-8"
+  class="flex flex-wrap border rounded p-2 gap-2 md:p-8"
 >
   <div class="flex flex-col gap-8 min-w-full xl:min-w-[520px] md:flex-1">
-    <h2 class="text-5xl">
-      Made it this far? Get a <span class="text-[#15b8a6]">free</span> t-shirt, on
-      us!
+    <h2>
+      Made it this far? Want a <span class="text-[#15b8a6]">free</span> t-shirt? We got ya.
     </h2>
-    <p class="text-3xl not-prose">
+    <p class="not-prose">
       Thank you for spending some time getting familiar with Fusion<span
-        class="text-[#f58320]">Auth.</span
-      >
+        class="text-[#f58320]">Auth</span>.
     </p>
     <div class="flex">
       <a href="https://go.fusionauth.io/tshirt" class="not-prose">
@@ -21,7 +19,7 @@
         </button>
       </a>
     </div>
-    <p class="text-md md:text-lg not-prose">
+    <p class="text-md not-prose">
       *Offer only valid in the United States and Canada, while supplies last.
     </p>
   </div>