DDR acronym needs defined

[brian-dlptest]

In section DID001: Data Discovery there is a call out for other DDR tools but the DDR acronym hasn't been defined yet. In section DPR002: Identifying and Preventing Misuse which is after DID001, Data Detection and Response is called out.

Suggested fix
In section DID001: Data Discovery change other DDR tools to Data Detection and Response (DDR) and in section DPR002: Identifying and Preventing Misuse change Data Detection and Response to DDR