Update README.md

Author: TheArchitect2000

README.md

@@ -22,8 +22,8 @@ To run `Blockchain-based-IoT-Server` effectively, the following system specifica
 - **Storage:** 30 GB SSD minimum
 - **CPU:** Dual-core processor (x86_64 or ARM64)
 
-- Consider a URL for your IoT Server. All your users will access the IoT server web dashboard using this URL. We call it PANEL_URL in this ReadMe.
-- Consider a URL for your IoT Server's administrators. All your administrators will access the IoT server admin dashboard using this URL. We call it ADMIN_URL in the ReadMe.
+- **PANEL_URL: Consider a URL (sub-domain), e.g., panel.zksensor.tech, for your IoT server's users. We call it PANEL_URL in this ReadMe.**
+- **ADMIN_URL: Consider a URL (sub-domain), e.g., admin.zksensor.tech, for your IoT server's administrators. We call it ADMIN_URL in the ReadMe.**
 
 _These requirements are suitable for typical IoT workloads. Actual needs may vary based on deployment scale and data volume._