Add settings comment about STUDIO_NAME and STUDIO_SHORT_NAME

cms/envs/common.py

@@ -45,6 +45,8 @@ STUDIO_SHORT_NAME = "Studio"
 STUDIO_NAME = "{platform_name} {short_name}".format(
     platform_name=PLATFORM_NAME, short_name=STUDIO_SHORT_NAME,
 )
+# Note that if you redefine STUDIO_SHORT_NAME in another settings file,
+# you'll also need to redefine STUDIO_NAME -- it won't automatically inherit.
 FEATURES = {
     'USE_DJANGO_PIPELINE': True,