Update thundermgmt.md

Author: bhillkeyfactor

docsource/thundermgmt.md

@@ -1,14 +1,24 @@
 ## Overview
 
-TODO Overview is a required section
+### 🔐 Management Certificates
 
-## Requirements
+**Purpose:**  
+Used to secure HTTPS access to the A10 management interface (GUI/API).
 
-TODO Requirements is an optional section. If this section doesn't seem necessary on initial glance, please delete it. Refer to the docs on [Confluence](https://keyfactor.atlassian.net/wiki/x/SAAyHg) for more info
+**Usage Context:**  
+- AXAPI (API access over HTTPS)
+- Web GUI login
+- Any administrative HTTPS session
+
+**Configured In:**  
+- **GUI:** `System → Settings → Certificate`
 
-## Discovery Job Configuration
+**Example:**  
+When a user logs into the GUI via `https://<device_ip>`, the certificate presented is the **Management Certificate**.
 
-TODO Discovery Job Configuration is an optional section. If this section doesn't seem necessary on initial glance, please delete it. Refer to the docs on [Confluence](https://keyfactor.atlassian.net/wiki/x/SAAyHg) for more info
+## Requirements
+
+TODO Requirements is an optional section. If this section doesn't seem necessary on initial glance, please delete it. Refer to the docs on [Confluence](https://keyfactor.atlassian.net/wiki/x/SAAyHg) for more info
 
 ## Certificate Store Configuration