logg.py: adds comments about protocol logging levels

Signed-off-by: Jed Reynolds <jed@bitratchet.com>

lanforge_client/logg.py

@@ -37,6 +37,16 @@ class Logg:
     These reserved words may not be used as tags:
         debug, debugging, debug_log, digest, file, gui, http, json, log, method, tag
 
+    Protocol logging levels:
+        * always: X-Errors( stops script on halt_on_errors)
+        * timeouts: can be configured as halt level errors
+        - digest (POST set_port / GET /ports )
+        - url    (POST /cli-json/set_port / GET /port/1/2/3/?fields)
+        - json   (POST /cli-json/set_port { a:b } ; GET /port/1/2/3?fields {results interfaces[]}
+        - http   that plus X-Warnings and ALL headers
+        - gui    Xtra debugging messages generated by LANforgeGUI
+
+
     Please also consider how log messages can be formatted:
     https://stackoverflow.com/a/20112491/11014343:
     logging.basicConfig(format="[%(filename)s:%(lineno)s - %(funcName)20s() ] %(message)s")