Install Requirements section needs updated

[glen4cindy]

The section Install Requirements begins with:

"For both this basic schematic shown here in the Readme and how they it is laid out, you must use the ESPHome fork of ratgdo and - for ESP8266 based boards - select the blue v2.5 board on the ESPhome web installer page."

The web installer page only lists black and white boards. There is not a blue board.

There are 2 black 2.5 boards available.

There is also a minor readability issue in the first line.

[Kaldek]

They've probably updated the source web pages, as those are outside of our control. Likely the board colours from Paul Wieland have also changed.

I'll go take a look and see what needs changing.