Add sample snippets.cson to dot-atom template

dot-atom/snippets.cson

@@ -0,0 +1,15 @@
+# Your snippets
+#
+# Atom snippets allow you to enter a simple prefix in the editor and hit tab to
+# expand the prefix into a larger code block with templated values.
+#
+# You can create a new snippet in this file by typing `snip` and then hitting
+# tab.
+#
+# An example CoffeeScript snippet to expand log to console.log:
+#
+# '.source.coffee':
+#   'Console log':
+#     'prefix': 'log'
+#     'body': 'console.log $1'
+#