[Keyboard] Add new Elise, 65% Keyboard ANSI / ISO (#12782)

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/draytronics/elise/readme.md

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+# ELISE
+
+![elise](https://www.draytronics.co.uk/wp-content/uploads/2021/04/repository-open-graph-template.png)
+
+A open source, low cost 65% keyboard PCB with USB-C, ESD protection, RGB underglow and XD68 case / plate compatability.  Designed in the UK. 
+More info / sales / PCB designs available at [draytronics.co.uk/elise](https://draytronics.co.uk)
+
+* Keyboard Maintainer: [Blake Drayson](https://github.com/ghostseven)
+* Hardware Supported: ELISE PCB / ATMega32U4
+* Hardware Availability: [draytronics.co.uk](https://draytronics.co.uk)
+
+
+Entering DFU mode (to allow flashing):
+
+ - Pressing the reset button on the back of the board when it is plugged in will enter DFU.
+ - Holding down the ESC key whilst plugging in the keyboard will enter DFU.
+ - If you have one of the provided keymaps flashed, then pressing FN-Tab will enter DFU.
+    
+Make example for this keyboard (after setting up your build environment):
+
+    make draytronics/elise:default
+
+Flashing example for this keyboard:
+
+    make draytronics/elise:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+
+![elise-pcb-top](https://www.draytronics.co.uk/wp-content/uploads/2021/04/Draytronics-Elise-PCB-V1-top.png)
+
+![elise-pcb-bot](https://www.draytronics.co.uk/wp-content/uploads/2021/04/Draytronics-Elise-PCB-V1-bottom.png)