Fix typo on pricing calc include

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

_includes/pricing/pricing-calc.html

@@ -10,7 +10,7 @@
           A license is needed for each inlets TCP or HTTP client that you intend to run, however a single tunnel can multiplex many different services.
         </p>
         <p class="text-md text-gray-500 leading-7 text-justify mb-2">
-          There two ways to multiple different sites or domains:
+          There are two ways to multiple different sites or domains:
           <ul>
             <li class="mt-4 flex items-start text-md text-gray-500 leading-7 text-justify mb-2">1. With an inlets HTTP tunnel server/client, you can specify different domains for different services.</li>
             <li class="mt-4 flex items-start text-md text-gray-500 leading-7 text-justify mb-2">2. With an inlets TCP tunnel you can expose ports 80 and 443 from a reverse proxy or Ingress Controller to act like a cloud load-balancer.</li>