added some language from announcement email

Author: AmberAlston

docs/vendor/security-center-about.mdx

@@ -10,7 +10,7 @@ The Security Center is Alpha. To access the Security Center, a feature flag must
 
 The Security Center helps you strengthen security enablement in your application delivery process by making it easier for both you and your enterprise customers to monitor security risks, assess known vulnerabilities, and view security information for each application release.
 
-The Security Center is powered by Replicated’s [SecureBuild](https://securebuild.com/) product.
+The Security Center is powered by Replicated’s [SecureBuild](https://securebuild.com/) technology. Every image is scanned continuously, not just at release time. Customers can see the same application version security information that you do, driving customer transparency, reduced security questionnaire burden, and adoption of newer, more secure versions of your application. 
 
 ## Limitations
 * The Security Center is Alpha. The features and functionality of the Security Center are subject to change.
@@ -54,4 +54,4 @@ The following shows an example of the Security Center dashboard in the Enterpris
 
 The **Security Center** tab in the Enterprise Portal is not enabled by default. If the Security Center feature flag is enabled for your Vendor Portal team, you can optionally enable the Enterprise Portal **Security Center** tab on a per-customer basis.
 
-To enable the **Security Center** tab in a customer's Enterprise Portal, go to **Customers > [Customer] > Enterprise Portal access**.
+To enable the **Security Center** tab in a customer's Enterprise Portal, go to **Customers > [Customer] > Enterprise Portal access**.