adding sponsorship description

Author: deepakkumar-platform

.github/SPONSORSHIP.md

@@ -0,0 +1,11 @@
+# Sponsor DevOps – Learn by Doing
+
+Your sponsorship helps us make DevOps education more practical and accessible!
+
+**How will funds be used?**
+- Hosting the site on a custom domain
+- Developing a full-stack web application with even more features
+- Covering infrastructure and ongoing project maintenance
+- Supporting the addition of new hands-on labs and resources
+
+Every contribution helps the project grow and remain free for everyone. Thank you for supporting open source DevOps learning!