Add "DevOpsdays gives back" page. Fixes #42
Add "DevOpsdays gives back" page. Fixes #42

Per @bridgetkromhout, this should eventually find its way into the organizing guide, but we need to preserve old links too.


Former-commit-id: 9cdbe8ffc3ab0c36ece806f66d34fbd4084e01cc
masteinhauser/devopsdays-web,benjohnson77/devopsdays-web,masteinhauser/devopsdays-web,benjohnson77/devopsdays-web,benjohnson77/devopsdays-web,masteinhauser/devopsdays-web,masteinhauser/devopsdays-web,joelaha/devopsdays-web,joelaha/devopsdays-web,benjohnson77/devopsdays-web,joelaha/devopsdays-web,joelaha/devopsdays-web