[acknowledgement] Describe module usage clearly in README

[nicolasbrossard]

The module README should describe clearly how the module should be used, more precisely that you enter acknowledgements in the module and then use the script in htdocs (with a given date) to generate a boiler plate acknowledgement list.

[ridz1208]

@charliehenrib have fun

[charliehenrib]

@ridz1208 I have limited knowledge of this module, so I could not add much... Please see the information in this document: https://docs.google.com/document/d/1kVLaHzMGttm_eP3KzJT_6EcCDWwHVLL6QQVps18e6RM/edit?usp=sharing

[nicolasbrossard]

README still needs work as of 2024SEP18.