Add CnCNet sponsor notification to readme

Author: Rampastring

README.md

@@ -77,3 +77,11 @@ EA has not endorsed and does not support the World-Altering Editor.
 The World-Altering Editor was originally developed by the Dawn of the Tiberium Age staff for their mod. TS and YR support were added later to offer a boost in mapping efficiency to the rest of the second-generation C&C community.
 
 [![Dawn of the Tiberium Age Homepage](docs/images/dtalogo.png)](https://www.moddb.com/mods/the-dawn-of-the-tiberium-age "Dawn of the Tiberium Age Homepage")
+
+## Sponsored by
+
+The World-Altering Editor is a CnCNet project. CnCNet is sponsored by DigitalOcean.
+
+<a href="https://www.digitalocean.com/?refcode=337544e2ec7b&utm_campaign=Referral_Invite&utm_medium=opensource&utm_source=CnCNet" title="Powered by Digital Ocean" target="_blank">
+    <img src="https://opensource.nyc3.cdn.digitaloceanspaces.com/attribution/assets/PoweredByDO/DO_Powered_by_Badge_blue.svg" width="201px" alt="Powered By Digital Ocean" />
+</a>