Please follow the advice provided in the resources in week 4 of Content about writing a memo. In addition, you can be creative in directing the faculty members to where they can access the new set of instructions. You can make up the name of a folder on Google drive or some other folder on the cloud.
This is an internal memo. However, some faculty members might not remember the details about the instructions that the previous student worker wrote. For this reason, you will want to introduce the memo with some level of detail of the history of the instructions, let them know that the instructions have been revised, and let them know where they can access them. Of course, you will want to provide them with your contact information in case they have additional questions.
Attached is the revised instructions to use for help with writing this memo.