Update devexpress-detect.yaml description & reference

http/technologies/devexpress-detect.yaml

@@ -7,6 +7,10 @@ info:
   metadata:
     max-request: 1
     shodan-query: html:"DXR.axd"
+  description: "Detect DevExpress based on existence of its HTTP handler for serving images, scripts and other resources to the client side"
+  reference:
+    - https://github.com/DevExpress/aspnet-security-bestpractices/blob/master/SecurityBestPractices.WebForms/README.md#53-information-exposure-through-source-code
+    - https://supportcenter.devexpress.com/ticket/details/q311748/dxr-axd-what-is-it-and-how-to-disable-it
   tags: devexpress,iis,microsoft,asp,tech
 
 http: