Update Readme with manufacturer / sale links

Signed-off-by: Tisham Dhar <whatnickd@gmail.com>

Author: whatnick

README.md

@@ -3,5 +3,18 @@
 For those wanting to monitor lots of individual channels in a single-phase household the
 [ADE7816](https://www.analog.com/en/products/ade7816.html)
 is an ideal solution. It allows differential current sensors for 3 channels and single ended current
-sensors for 3 more channels. The MCU interface is over the classic SPI bus, and Arduino driver will
-be developed along with this breakout board.
+sensors for 3 more channels. The MCU interface is over SPI or I2C bus, and Arduino driver will
+be developed along with this breakout board.
+
+## Supporting Software
+
+There is work in progress on supporting this board in [Arduino](https://github.com/whatnick/ADE7816_Arduino) and [Micropython](https://github.com/whatnick/ade7816_micropython).
+
+## Getting the hardware
+
+The hardware can be obtained as PCB, PCB + Parts Kit or Fully assembled.
+
+- [Tindie Fully assembled](https://www.tindie.com/stores/whatnick/)
+- [Aisler partkit](https://aisler.net/whatnick/playground/ade7816-breakout)
+- [OSHPark PCB](https://oshpark.com/shared_projects/oovHySXk)
+- [PCBWay PCB](https://www.pcbway.com/project/shareproject/Breakout_Board_for_ADE7816_6_Channel_Energy_Monitor_ASIC.html)