Added "data.table-package" postfix to .Rd to move ?data.table to the start of the PDF manual.
Added "data.table-package" postfix to .Rd to move ?data.table to the start of the PDF manual.

vlulla/data.table,vlulla/data.table,jangorecki/data.table,Rdatatable/data.table,jangorecki/data.table,Rdatatable/data.table,vlulla/data.table,jangorecki/data.table,Rdatatable/data.table,jangorecki/data.table,Rdatatable/data.table,vlulla/data.table