[SSL/TLS] Undo accidental change of a colon

Author: tomkln

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

@@ -27,7 +27,7 @@ TLS 1.3 can be activated in the Cloudflare dashboard or through the API:
 
 <Tabs syncKey="dashPlusAPI"> <TabItem label="Dashboard">
 
-To enable TLS 1.3 in the dashboard.
+To enable TLS 1.3 in the dashboard:
 
 1. Log in to your [Cloudflare account](https://dash.cloudflare.com) and go to a specific domain.
 2. Go to **SSL/TLS** > **Edge Certificates**.