AMJ40 Refactor (#11854)

* update keyboard source files

- add license headers (attributed to original keyboard submitter)
- #pragma once include guards
- file template matching
- readme update and template matching

* set sensible default keyboard settings

- enable Bootmagic Lite and Mouse Keys
- disable Console and Command
- remove default keymap's rules.mk file

* remove unnecessary files from default keymap

* refactor default keymap

* add additional layouts/keymaps

* update keyboard readme

- add images and bootloader instructions
- reformat link list

* convert tabs to spaces in default keymap

1 files changed, 15 insertions, 6 deletions

diff --git a/keyboards/amj40/readme.md b/keyboards/amj40/readme.md
index fbf1d9f22..1d7316fcf 100755
--- a/keyboards/amj40/readme.md
+++ b/keyboards/amj40/readme.md
@@ -1,14 +1,23 @@
-AMJ40
-===
+# AMJ40
+
+![AMJ40](https://raw.githubusercontent.com/noroadsleft/qmk_images/master/keyboards/amj40/AMJ40-Keyboard-Side-scaled_640.jpg)\
+[PCB photo](https://raw.githubusercontent.com/noroadsleft/qmk_images/master/keyboards/amj40/DSC_1718-768x512_640)
 
 DIY/Assembled compact 40% keyboard.
 
-Keyboard Maintainer: QMK Community  
-Hardware Supported: AMJ40 PCB  
-Hardware Availability: https://geekhack.org/index.php?topic=87961.0
+* Keyboard Maintainer: QMK Community
+* Hardware Supported: AMJ40 PCB
+* Hardware Availability: no longer available
+* References: [Flashquark](https://flashquark.com/product/amj40-40-mechanical-keyboard-kit/), [geekhack](https://geekhack.org/index.php?topic=87961.0)
 
 Make example for this keyboard (after setting up your build environment):
 
     make amj40:default
 
-See [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) then the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information.
+Flashing example for this keyboard:
+
+    make amj40:default:flash
+
+To reset the board into bootloader mode, hold the key at the top left of the keyboard while connecting the USB cable (also erases persistent settings).
+
+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).