Python version mismatch in OTA doc

[kifort]

Basic Infos

• [?] This issue complies with the issue POLICY doc.
• [-] I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in current master branch (aka latest git).
• I have searched the issue tracker for a similar issue.
• If there is a stack dump, I have decoded it.
• I have filled out all fields below.

Platform

• Hardware: none
• Core Version: 2021.12.19
• Development Env: none
• Operating System: all

Settings in IDE

• Module: none
• Flash Mode: none
• Flash Size: all
• lwip Variant: none
• Reset Method: none
• Flash Frequency: none
• CPU Frequency: none
• Upload Using: OTA
• Upload Speed: none (serial upload only)

Problem Description

In [OTA update documentation]
(https://github.com/esp8266/Arduino/blob/master/doc/ota_updates/readme.rst#:~:text=select%20%E2%80%9CAdd%20python.exe%20to%20Path%E2%80%9D), text is about Python 3.x, but screenshot is Python 2.7.

See the confusion it causes at this OTA tutorial

[earlephilhower]

Good catch!

Users don't even need to install Python anymore (we ship and use our own private version), so that whole bit of the docs should be deleted.