FAQs: update external link (#737)

Author: Paul-Cornell

faq/faq.mdx

@@ -1,7 +1,7 @@
 ---
 title: "Frequently asked questions"
-url: "https://unstructured.io/developers#faq"
+url: "https://unstructured.io/pricing#faq"
 icon: "question"
 ---
 
-View our frequently asked questions: go to [https://unstructured.io/pricing](https://unstructured.io/pricing) and scroll to the "FAQs" section on that page.
+View our [frequently asked questions](https://unstructured.io/pricing#faq).