[ZT] Add Learning Center links (#20846)

* Add CASB link

* Add Gateway link

* Add DLP link

* Add meta LC links

Author: maxvp

src/content/docs/cloudflare-one/applications/casb/index.mdx

@@ -3,6 +3,9 @@ pcx_content_type: how-to
 title: Cloud Access Security Broker
 sidebar:
   order: 3
+learning_center:
+  title: What is CASB? | Cloud access security brokers
+  link: https://www.cloudflare.com/learning/access-management/what-is-a-casb/
 ---
 
 import { GlossaryTooltip, Render } from "~/components";
@@ -13,7 +16,7 @@ Available for all Zero Trust users.
 Free users can configure up to two CASB integrations. You must upgrade to an Enterprise plan to view the details of a finding instance.
 :::
 
-Cloudflare's API-driven Cloud Access Security Broker (CASB) integrates with SaaS applications and cloud environments to scan for misconfigurations, unauthorized user activity, <GlossaryTooltip term="shadow IT" link="https://www.cloudflare.com/learning/access-management/what-is-shadow-it/">shadow IT</GlossaryTooltip>, and other data security issues that can occur after a user has successfully logged in.
+Cloudflare's API-driven [Cloud Access Security Broker](https://www.cloudflare.com/learning/access-management/what-is-a-casb/) (CASB) integrates with SaaS applications and cloud environments to scan for misconfigurations, unauthorized user activity, <GlossaryTooltip term="shadow IT" link="https://www.cloudflare.com/learning/access-management/what-is-shadow-it/">shadow IT</GlossaryTooltip>, and other data security issues that can occur after a user has successfully logged in.
 
 ## Manage CASB integrations
 

src/content/docs/cloudflare-one/policies/data-loss-prevention/index.mdx

@@ -3,6 +3,9 @@ pcx_content_type: concept
 title: Data Loss Prevention
 sidebar:
   order: 5
+learning_center:
+  title: What is DLP (data loss prevention)?
+  link: https://www.cloudflare.com/learning/access-management/what-is-dlp/
 ---
 
 import { GlossaryDefinition } from "~/components";

src/content/docs/cloudflare-one/policies/gateway/index.mdx

@@ -8,7 +8,7 @@ head:
     content: Gateway policies
 ---
 
-Cloudflare Gateway, our comprehensive Secure Web Gateway, allows you to set up policies to inspect DNS, Network, HTTP, and Egress traffic.
+Cloudflare Gateway, our comprehensive [Secure Web Gateway](https://www.cloudflare.com/learning/access-management/what-is-a-secure-web-gateway/), allows you to set up policies to inspect DNS, Network, HTTP, and Egress traffic.
 
 - **DNS policies** inspect DNS queries. You can block domains and IP addresses from resolving on your devices. For more information on DNS filtering, refer to our [Learning Center article](https://www.cloudflare.com/learning/access-management/what-is-dns-filtering/).
 - **Network policies** inspect individual TCP/UDP/GRE packets. You can block access to specific ports on your origin server, including non-HTTP resources.

src/content/docs/cloudflare-one/policies/gateway/initial-setup/dns.mdx

@@ -6,14 +6,16 @@ sidebar:
 head:
   - tag: title
     content: Set up DNS filtering
+learning_center:
+  title: What is DNS filtering? | Secure DNS servers
+  link: https://www.cloudflare.com/learning/access-management/what-is-dns-filtering/
 ---
 
 import { GlossaryTooltip, Render } from "~/components";
 
 Secure Web Gateway allows you to inspect DNS traffic and control which websites users can visit.
 
 :::note
-
 For a more detailed guide to filtering DNS queries and other traffic for your organization, refer to the [Secure your Internet traffic and SaaS apps](/learning-paths/secure-internet-traffic/concepts/) implementation guide.
 :::
 

src/content/docs/cloudflare-one/policies/gateway/initial-setup/http.mdx

@@ -6,14 +6,16 @@ sidebar:
 head:
   - tag: title
     content: Set up HTTP filtering
+learning_center:
+  title: What is URL filtering? | Web filtering
+  link: https://www.cloudflare.com/learning/access-management/what-is-url-filtering/
 ---
 
 import { GlossaryTooltip, Render } from "~/components";
 
 Secure Web Gateway allows you to inspect HTTP traffic and control which websites users can visit.
 
 :::note
-
 For a more detailed guide to filtering HTTP requests and other traffic for your organization, refer to the [Secure your Internet traffic and SaaS apps](/learning-paths/secure-internet-traffic/concepts/) implementation guide.
 :::
 

src/content/docs/cloudflare-one/policies/gateway/initial-setup/network.mdx

@@ -13,7 +13,6 @@ import { GlossaryTooltip, Render } from "~/components";
 Secure Web Gateway allows you to apply policies at the network level (Layers 3 and 4) to control which websites and non-HTTP applications users can access.
 
 :::note
-
 For a more detailed guide to filtering network traffic and more for your organization, refer to the [Secure your Internet traffic and SaaS apps](/learning-paths/secure-internet-traffic/concepts/) implementation guide.
 :::
 

src/content/glossary/cloudflare-one.yaml

@@ -43,7 +43,7 @@ entries:
 
   - term: Cloudflare Data Loss Prevention (DLP)
     general_definition: |-
-      Cloudflare Data Loss Prevention (DLP) allows you to scan your web traffic and SaaS applications for the presence of sensitive data such as social security numbers, financial information, secret keys, and source code.
+      Cloudflare [Data Loss Prevention](https://www.cloudflare.com/learning/access-management/what-is-dlp/) (DLP) allows you to scan your web traffic and SaaS applications for the presence of sensitive data such as social security numbers, financial information, secret keys, and source code.
 
   - term: Cloudflare DEX
     general_definition: |-