[Marketing] cURL stickers for FOSS4G

[Brian M Hamlin]

All -  I have been networking with the cURL project for the last few 
months. The cURL project is popular in the public, says "networks" to 
everyone (an important topic in 2023), and has gotten awards from EU OSS 
government organizations recently.

Laptop stickers are popular. Maybe it is worth the effort to include 
cURL stickers for FOSS4G, along with the USB "card" for #osgeolive.

    -Brian