Add missing WASM nav links

Author: colepeters

app/pages/docs/$$.html

@@ -21,6 +21,7 @@
   <div slot="product-nav-lg" class="flex align-items-center">
     <masthead-product-link href="/">Home</masthead-product-link>
     <masthead-product-link href="/docs" active>Docs</masthead-product-link>
+    <masthead-product-link href="/wasm">Enhance WASM</masthead-product-link>
     <masthead-product-link href="/why-enhance">
       Why Enhance?
     </masthead-product-link>

app/pages/index.html

@@ -111,6 +111,7 @@
   <div slot="product-nav-lg" class="flex align-items-center">
     <masthead-product-link active href="/">Home</masthead-product-link>
     <masthead-product-link href="/docs">Docs</masthead-product-link>
+    <masthead-product-link href="/wasm">Enhance WASM</masthead-product-link>
     <masthead-product-link href="/why-enhance">
       Why Enhance?
     </masthead-product-link>

app/pages/why-enhance.html

@@ -48,6 +48,7 @@
   <div slot="product-nav-lg" class="flex align-items-center">
     <masthead-product-link href="/">Home</masthead-product-link>
     <masthead-product-link href="/docs">Docs</masthead-product-link>
+    <masthead-product-link href="/wasm">Enhance WASM</masthead-product-link>
     <masthead-product-link active href="/why-enhance">
       Why Enhance?
     </masthead-product-link>