Change Nightly release wording

[Nereithr]

Issue

Current "SW Nightly - Please install over any existing version of SW with the latest version of BCML." is ambiguous and open to interpretation. Over can mean instead of, or over can mean install latest version then install nightly on top of it. In addition it is unclear to users whether you can install the zip file using BCML. This leads to questions that don't need to exist.

Solution

Change to: "SW Nightly - Please install SWNightly.zip with the latest version of BCML like any other .bnp file. You don't need the <regular/latest/stable> release."