improved form in index.mdx

Signed-off-by: Deepak Choudhary <114693662+Deepak-Choudhary0@users.noreply.github.com>

src/collections/service-mesh-books/the-enterprise-path-to-service-mesh-architectures-2nd-Edition/index.mdx

@@ -18,17 +18,14 @@ import CommonForm from "../../../components/CommonForm";
 
 <BookWrapper>
 
-<div className="book"><a href="https://www.nginx.com/resources/library/the-enterprise-path-to-service-mesh-architectures/"><img className="card" width="300px" src={service_mesh_book_second_edition} align="centre" /></a><div>&nbsp;</div>
-    /*
- <Button primary className="banner-btn one pa-8" title="Get the Book" url="https://www.nginx.com/resources/library/the-enterprise-path-to-service-mesh-architectures/" external="true" />
- */
+<div className="book"><img className="card" width="300px" src={service_mesh_book_second_edition} align="centre" /><div>&nbsp;</div>
    <Col lg={5} md={6} sm={12} style={{ padding: "0" }}>
       <CommonForm
         title="Get the Book"
-        form="The Enterprise path to service mesh Architectures 2nd Edition"
-        account_desc="Send the The Enterprise path to service mesh Architectures 2nd Edition book in the Mail."
-        submit_title="You will get book soon in the mail!"
-        submit_body="Please patiently await for The Enterprise path to service mesh Architectures 2nd Edition Book."
+        form="epsma-book"
+        account_desc="Email the The Enterprise Path to Service Mesh Architectures 2nd Edition"
+        submit_title="Your copy of the book will arrive in your mailbox shortly."
+        submit_body="While waiting for your copy to arrive take a free learning path - https://layer5.io/learn/learning-path"
       />
     </Col>
 </div>