Update docs/docsite/rst/dev_guidelines.rst

Co-authored-by: Mark Chappell <[email protected]>

docs/docsite/rst/dev_guidelines.rst

@@ -482,7 +482,7 @@ some response metadata.  It is OK to return this to the user as well as they may
 
 Boto3 returns most keys in CamelCase.  Ansible adopts python standards for naming variables and usage.
 There is a useful helper function called ``camel_dict_to_snake_dict`` that allows for an easy conversion
-of the boto3 response to snake_case.  It resides in ``module_utils/common/dict_transformations``.
+of the boto3 response to snake_case.  It resides in ``ansible.module_utils.``.
 
 You should use this helper function and avoid changing the names of values returned by Boto3.
 E.g. if boto3 returns a value called 'SecretAccessKey' do not change it to 'AccessKey'.