[Three Year] Clarify language about dataset content

[meissadia]

Three Year National Loan Level Dataset - The description is causing some confusion. Suggest changing to: ​

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The data includes the Loan Application Register (LAR) and Transmittal Sheet (TS) submitted to the Bureau, which are made available to the public and include adjustments to the data incorporated in the 34 months following the reporting deadline. Each dataset contains the selected filing year's data with any updates submitted until the year was closed for resubmission​

Transmittal sheets include information about the filing institution, reporting period, and contact information. LARs include all data fields relating to the reported loan or application. Each covered loan or application appears on its own line.​