Update docs/tutorials/DynamicFileNames/DynamicFileNames.md,...

Update docs/tutorials/DynamicFileNames/DynamicFileNames.md, images/assigntask.png, images/dynatemplate.png, images/inputpara.png

docs/tutorials/DynamicFileNames/DynamicFileNames.md

+# Dynamic file names are tricky
+
+## Sources
+
+### Amazon S3 bucket
+
+1) In a Taskflow, create an assignment task and add a function.
+![Assignmenttask](images/assgintask.png "AssignTask")
+2) Add a template file to your S3 bucket that includes all headers and full example of the dynamic file name (for example, MyFile_20230512.csv). This file will need to remain in your bucket for the life of the integration/mapping.
+![DynamicTemplate](images/dynatemplate.png "Dynamic Template")
+3) Add into the **Mapping Task** source Advanced settings the input parameter from the Assignment task.
+![InputPara](images/inputpara.png "Input Parameter")
+
+## Targets
+