Problem with _documentation/consumer/hikey/hikey620/installation/README.md

[Ciaran Moran]

URL: https://www.96boards.org/documentation/consumer/hikey/hikey620/installation/
states: "Factory Images Method (currently available for AOSP only)", but links to a page with downloads for:

• Debian (9 only)
• AOSP
• OpenEmbedded

[Robert Wolff]

@morancj I have removed the link to downloads which may have cause confusion for the factory install option. Fix can be found in the following PR:

#846