update name in example

tools/utils/cat/example_usage/Snakefile

@@ -9,7 +9,7 @@ __main_output_dir = config.get('output_dir', 'output')
 SAMPLES = config.get('samples')
 __input_dir = config.get('input_dir', 'data')
 
-# ==== EggNOGmapper2 Diamond ====
+# ==== Cat ====
 __cat_merged_name = config.get('cat', {}).get('name_merge', 'cat_file')
 __cat_output_dir = __input_dir