brainsnail: add main.go for contributor workshop at GopherCon

Change-Id: I2bffbb1fc4c01fbd750381fbfe49da8f04042687
Reviewed-on: https://go-review.googlesource.com/48868
Reviewed-by: Kevin Burke <kev@inburke.com>
diff --git a/brainsnail/main.go b/brainsnail/main.go
new file mode 100644
index 0000000..1571143
--- /dev/null
+++ b/brainsnail/main.go
@@ -0,0 +1,11 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("Now it's really happening.")
+}