Change banner image URL in README.md

Updated the banner image in the README file.

Delete netlicensing-mcp-banner.jpg

Author: r-brown

README.md

@@ -1,4 +1,4 @@
-<p align="center"><img src="https://raw.githubusercontent.com/Labs64/NetLicensing-MCP/refs/heads/master/netlicensing-mcp-banner.jpg"></p>
+<p align="center"><img src="https://private-user-images.githubusercontent.com/1361258/566712862-520b995b-d6d3-4a0e-be47-1b66c2dd9912.jpg?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.L-auczJnUyovaLkCB_fdR78G0nlPWs-Xr7gCdtLt2ZU"></p>
 
 # NetLicensing MCP Server