change snippet name

docs/modules/wiki/pages/atom_snippets.adoc

@@ -29,8 +29,8 @@
   'Cross reference internal element, same module':
     'prefix': 'xrefIsm'
     'body': '<<${1:target-page-filename}.adoc#${2:reference-section},${3:custom label text}>>'
-  'Cross reference internal element, different module':
-    'prefix': 'xrefIdm'
+  'Cross reference internal element, named module':
+    'prefix': 'xrefInm'
     'body': 'xref:${1:module-name}:${2:target-page-filename}.adoc#${3:reference-section}[${4:label text}]'
   'Cross reference page, same module':
     'prefix': 'xrefP'