Reorganize clueboard into a single directory (#1855)

keyboards/clueboard/66/keymaps/smt/readme.md

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+# smt Clueboard Layout (HHKB variant)
+
+![Clueboard Layout Image](http://i.imgur.com/Ll5gGte.png)
+
+This is smt's HHKB variant layout, based on the default layout that comes
+flashed on every Clueboard. The primary differences from the default are:
+
+- The Backspace key is moved down into the traditional `\` position
+- `\` and `` ` `` are assigned to the "split-backspace" positions
+- The right Shift is split to allow for a Fn key to its right
+- The modifiers on the right side now mirror the left side (`Alt`/`Super`/`Ctrl`)
+
+For the most part, it's a straightforward and easy to follow layout. There
+are a few special keys:
+
+- The Esc key sends `Esc` when tapped, `` ` `` when `Alt`/`Super`/`Ctrl`/`Fn` is held, or `~` when `Shift` is held
+- The Tab key sends `Tab` when tapped, or `Super+Ctrl+Alt+Shift` (a.k.a. [Hyper]) when held
+- The key traditionally in the Caps-Lock position has been re-mapped to send `Esc` when tapped, or `Ctrl` when held
+- The left Shift key sends `Enter` when tapped, or `Shift` when held
+
+[Hyper]: http://brettterpstra.com/2012/12/08/a-useful-caps-lock-key/