Remove redundant heading and link to specific protocols page

Author: RebeccaTamachiro

src/content/docs/ssl/edge-certificates/additional-options/tls-13.mdx

@@ -11,7 +11,7 @@ TLS 1.3 enables the latest version of the TLS protocol (when supported) for impr
 
 ## What is TLS 1.3?
 
-TLS 1.3 is the newest, fastest, and most secure version of the TLS protocol. SSL/TLS is the protocol that encrypts communication between users and your website. When web traffic is encrypted with TLS, users will see the green padlock in their browser window.
+TLS 1.3 is the newest, fastest, and most secure version of the [TLS protocol](/ssl/reference/protocols/).
 
 By turning on the TLS 1.3 feature, traffic to and from your website will be served over the TLS 1.3 protocol when supported by clients. TLS 1.3 protocol has improved latency over older versions, has several new features, and is currently supported in all updated major browsers.
 
@@ -23,8 +23,6 @@ By turning on the TLS 1.3 feature, traffic to and from your website will be serv
 
 TLS 1.3 can be activated in the Cloudflare dashboard or through the API:
 
-### Enable TLS 1.3 in Cloudflare settings
-
 <Tabs syncKey="dashPlusAPI"> <TabItem label="Dashboard">
 
 To enable TLS 1.3 in the dashboard: