Added Contribute Link

Author: makermelissa

_board/espressif_hmi_devkit_1.md

@@ -39,3 +39,7 @@ Please note this is an advanced development kit, for use with the 'raw' Espressi
 
 ## Purchase
 * [Adafruit](https://www.adafruit.com/product/5207)
+
+## Contribute
+
+Have some info to add for this board? Edit the source for this page [here](https://github.com/adafruit/circuitpython-org/edit/master/_board/{{ page.board_id }}.md).