diff --git a/config py.md b/config py.md
index 13b6ae0cc..4abd5b8a5 100644
--- a/config py.md	
+++ b/config py.md	
@@ -1,4 +1,7 @@
-```
+- Per-environment variables for [[agora server]] can be managed in `config.py` in [[go/agora-server/git]]
+- snapshot follows to illustrate
+ 
+ ```
 class DefaultConfig(object):
     AGORA_PATH = os.getenv('AGORA_PATH', os.path.join('/home', getpass.getuser(), 'agora'))                         
     # standard: no trailing slashes anywhere in variables.
@@ -18,7 +21,7 @@ class ProductionConfig(DefaultConfig):
 
     # EXPERIMENTS
     ENABLE_CTZN = True
-    ENABLE_STATS = True
+	# ENABLE_STATS is False by default
 
 class DevelopmentConfig(DefaultConfig):
     URL_BASE = "http://dev.anagora.org"
@@ -27,4 +30,4 @@ class DevelopmentConfig(DefaultConfig):
     # EXPERIMENTS
     ENABLE_CTZN = True
     ENABLE_STATS = True
-```
+```
\ No newline at end of file