acrolinx tweaks

Author: halkazwini

articles/frontdoor/high-availability.md

@@ -51,7 +51,7 @@ When implementing high availability architectures for production workloads, cons
 
 - Document WAF rule differences between Front Door and failover solutions.
 
-- **Origin security consideration:** Private Link is not recommended for these HA architectures because alternate CDN platforms can't access origins protected by Azure Front Door's Private Link integration. Additionally, Application Gateway requires extra virtual network and Private Endpoint configuration to reach private origins and can't leverage Front Door's native Private Link capabilities. For production environments utilizing Azure Front Door alongside other CDN providers, consider using alternative, CDN‑agnostic origin‑security controls such as token‑based origin authentication (HMAC or signed URLs), mutual TLS (mTLS), custom origin headers, and IP address filtering to enforce origin trust when Private Link or `X‑Azure‑FDID` validation can't be used.
+- **Origin security consideration:** Private Link isn't recommended for these HA architectures because alternate CDN platforms can't access origins protected by Azure Front Door's Private Link integration. Additionally, Application Gateway requires extra virtual network and Private Endpoint configuration to reach private origins and can't use Front Door's native Private Link capabilities. For production environments utilizing Azure Front Door alongside other CDN providers, consider using alternative, CDN‑agnostic origin‑security controls such as token‑based origin authentication (HMAC or signed URLs), mutual TLS (mTLS), custom origin headers, and IP address filtering to enforce origin trust when Private Link or `X‑Azure‑FDID` validation can't be used.
 
 - **Edit the sample commands listed in this guide so that they are tailored to your environment for automation and runbooks.**