Regenerate the CLI reference

Author: cmcgee1024

Documentation/SwiftlyDocs.docc/swiftly-cli-reference.md

@@ -58,6 +58,7 @@ Install whatever toolchain is currently selected, such as the the one in the .sw
     $ swiftly install
 
 NOTE: Swiftly downloads toolchains to a temporary file that it later cleans during its installation process. If these files are too big for your system temporary directory, set another location by setting the `TMPDIR` environment variable.
+process. If these files are too big for your usual temporary directory you can choose another location by setting the `TMPDIR` environment variable.
 
     $ TMPDIR=/large/file/tmp/storage swiftly install latest