Added mail for survey (resolves #17)

Author: jonicious

mail-survey.md

@@ -0,0 +1,10 @@
+# Mail for attendees to fill out our survey
+
+Hey!
+
+Exactly 10 days ago, the first CSSclasses in Hamburg took place. We would like to know how you liked the event and how we can improve the event. Therefore it would be great if you take a couple minutes and fill out the survey. This helps us a lot to improve and host a good event.
+
+You find the survey here: [http://goo.gl/forms/4Bone48GBsjiMnh02](http://goo.gl/forms/4Bone48GBsjiMnh02)
+
+Thanks for participating and have a nice week!
+Your CSSclasses team