adding readme

keyboards/ergodox/keymaps/dvorak_programmer/README.md

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+Dvorak Programmer Layout
+========================
+
+This is a dvorak-only layout. The overall philosophy is that the left hand contains a number of layer-switching shortcuts, and the right hand key codes vary based on the layer selected.
+
+Layers
+------
+
+* BASE: this is where you type.
+* SHELL_NAV: hold down the Tab key to access shell/terminal navigation shorcuts such as forward/backward word, history, Ctrl+C, screen tab movement.
+* KEY_NAV: arrow key movement with backward/forward word support, and copy/paste.
+* KEY_SEL: same as above, but every movement shift-selects.
+* NUMBER: keypad layer.
+* SYMBOL: all the symbols as well as brackets at the bottom.
+* SHORTCUTS: sends Hyper keys for Autohotkey to interpret. I use this to switch between specific apps.