Initial Hardware.md to fix 404 error

- Addressing issue #1935

Documentation/Hardware.md

+## Marlin Supported Hardware
+
+### 10 BOARD_GEN7_CUSTOM
+Gen7 custom (Alfons3 Version) "https://github.com/Alfons3/Generation_7_Electronics"
+
+### 11 BOARD_GEN7_12
+Gen7 v1.1, v1.2
+
+### 12 BOARD_GEN7_13
+Gen7 v1.3
+
+### 13 BOARD_GEN7_14
+Gen7 v1.4
+
+### 2 BOARD_CHEAPTRONIC
+Cheaptronic v1.0
+
+### 20 BOARD_SETHI
+Sethi 3D_1
+
+### 3 BOARD_RAMPS_OLD
+MEGA/RAMPS up to 1.2
+
+### 33 BOARD_RAMPS_13_EFB
+RAMPS 1.3 / 1.4 (Power outputs: Extruder, Fan, Bed)
+
+### 34 BOARD_RAMPS_13_EEB
+RAMPS 1.3 / 1.4 (Power outputs: Extruder0, Extruder1, Bed)
+
+### 35 BOARD_RAMPS_13_EFF
+RAMPS 1.3 / 1.4 (Power outputs: Extruder, Fan, Fan)
+
+### 36 BOARD_RAMPS_13_EEF
+RAMPS 1.3 / 1.4 (Power outputs: Extruder0, Extruder1, Fan)
+
+### 37 BOARD_FELIX2
+Felix 2.0+ Electronics Board (RAMPS like)
+
+### 4 BOARD_DUEMILANOVE_328P
+Duemilanove w/ ATMega328P pin assignments
+
+### 5 BOARD_GEN6
+Gen6
+
+### 51 BOARD_GEN6_DELUXE
+Gen6 deluxe
+
+### 6 BOARD_SANGUINOLOLU_11
+Sanguinololu < 1.2
+
+### 62 BOARD_SANGUINOLOLU_12
+Sanguinololu 1.2 and above
+
+### 63 BOARD_MELZI
+Melzi
+
+### 64 BOARD_STB_11
+STB V1.1
+
+### 65 BOARD_AZTEEG_X1
+Azteeg X1
+
+### 66 BOARD_MELZI_1284
+Melzi with ATmega1284 (MaKr3d version)
+
+### 67 BOARD_AZTEEG_X3
+Azteeg X3
+
+### 68 BOARD_AZTEEG_X3_PRO
+Azteeg X3 Pro
+
+### 7 BOARD_ULTIMAKER
+Ultimaker
+
+### 71 BOARD_ULTIMAKER_OLD
+Ultimaker (Older electronics. Pre 1.5.4. This is rare)
+
+### 72 BOARD_ULTIMAIN_2
+Ultimainboard 2.x (Uses TEMP_SENSOR 20)
+
+### 77 BOARD_3DRAG
+3Drag Controller
+
+### 78 BOARD_K8200
+Vellemann K8200 Controller (derived from 3Drag Controller)
+
+### 8 BOARD_TEENSYLU
+Teensylu
+
+### 80 BOARD_RUMBA
+Rumba
+
+### 81 BOARD_PRINTRBOARD
+Printrboard (AT90USB1286)
+
+### 82 BOARD_BRAINWAVE
+Brainwave (AT90USB646)
+
+### 83 BOARD_SAV_MKI
+SAV Mk-I (AT90USB1286)
+
+### 84 BOARD_TEENSY2
+Teensy++2.0 (AT90USB1286) - CLI compile: DEFINES=AT90USBxx_TEENSYPP_ASSIGNMENTS HARDWARE_MOTHERBOARD=84  make
+
+### 85 BOARD_BRAINWAVE_PRO
+Brainwave Pro (AT90USB1286)
+
+### 9 BOARD_GEN3_PLUS
+Gen3+
+
+### 22 BOARD_GEN3_MONOLITHIC
+Gen3 Monolithic Electronics
+
+### 70 BOARD_MEGATRONICS
+Megatronics
+
+### 701 BOARD_MEGATRONICS_2
+Megatronics v2.0
+
+### 702 BOARD_MEGATRONICS_1
+Minitronics v1.0
+
+### 703 BOARD_MEGATRONICS_3
+Megatronics v3.0
+
+### 90 BOARD_OMCA_A
+Alpha OMCA board
+
+### 91 BOARD_OMCA
+Final OMCA board
+
+### 301 BOARD_RAMBO
+Rambo
+
+### 21 BOARD_ELEFU_3
+Elefu Ra Board (v3)
+
+### 88 BOARD_5DPRINT
+5DPrint D8 Driver Board
+
+### 999 BOARD_LEAPFROG
+Leapfrog
+
+### 41 BOARD_WITBOX
+bq WITBOX
+
+### 42 BOARD_HEPHESTOS
+bq Prusa i3 Hephestos
+
+### 401 BOARD_BAM_DICE
+2PrintBeta BAM&DICE with STK drivers
+
+### 402 BOARD_BAM_DICE_DUE
+2PrintBeta BAM&DICE Due with STK drivers