feat: update GPU CTA section copy and button labels

- Changed heading from "Bring sovereign GPU acceleration to production" to "Choose How You Want to Start"
- Updated description to emphasize dual options: using Mycelium Cloud or contributing GPU nodes
- Renamed buttons to "Deploy GPU Workloads" and "Host A GPU Node" for clearer action paths

src/pages/gpu/CallToAction.tsx

@@ -14,11 +14,12 @@ export function CallToAction() {
       <Container className="relative">
         <div className="mx-auto max-w-2xl text-center">
           <h2 className="text-3xl lg:text-4xl font-medium tracking-tight text-white sm:text-4xl">
-            Bring sovereign GPU acceleration to production.
+            Choose How You Want to Start
           </h2>
           <p className="mt-6 text-lg text-gray-300">
-            Work with the Mycelium team to deploy GPU workloads that remain
-            verifiable, performant, and cost-transparent from edge to core.
+            Use GPUs through Mycelium Cloud,
+or contribute GPU nodes to the mesh and run your own workloads.
+
           </p>
           <div className="mt-10 flex flex-wrap justify-center gap-x-6 gap-y-4">
             <Button
@@ -29,7 +30,7 @@ export function CallToAction() {
               target="_blank"
               rel="noreferrer"
             >
-              Talk to our team
+              Deploy GPU Workloads
             </Button>
             <Button
               to="#gpu-architecture"
@@ -37,7 +38,7 @@ export function CallToAction() {
               variant="outline"
               color="white"
             >
-              Review architecture
+              Host A GPU Node
             </Button>
           </div>
         </div>