Update readme

documents/references.md

@@ -15,6 +15,9 @@ Various references used in project.
 (Pretty thorough docs of logging "settings dictionaries" in Python)
 <https://docs.djangoproject.com/en/dev/topics/logging/>
 
+#### Checking What Loggers Exist in a Project
+<https://stackoverflow.com/a/53250066>
+
 #### Adding a New Logging Level
 <https://stackoverflow.com/a/35804945>