-All keyboard names are in lower case, consisting only of letters, numbers, and underscore (`_`). Names may not begin with an underscore. The names `test`, `keyboard`, and `all` are reserved for make commands and may not be used as a keyboard or subfolder name.
+All keyboard names are in lower case, consisting only of letters, numbers, and underscore (`_`). Names may not begin with an underscore. Forward slash (`/`) is used as a sub-folder separation character.
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+The names `test`, `keyboard`, and `all` are reserved for make commands and may not be used as a keyboard or subfolder name.