changed to monotext

docs/modules/ROOT/pages/wiki/atom_snippets.adoc

@@ -1,3 +1,4 @@
+```
 # Your snippets
 #
 # Atom snippets allow you to enter a simple prefix in the editor and hit tab to
@@ -59,3 +60,4 @@
     .${1:Optional Title}
     ${2:NOTE}${3:TIP}${4:IMPORTANT}${5:CAUTION}${6:WARNING}: $7
     """
+```