Google - Pixel - sailfish - Documentation Suggestions

Please add your suggestions to improve the documentation for the Google - Pixel - sailfish here …

Hi there. Some suggestions:

The first point is that the command

fastboot flash recovery twrpimagename.img

didn’t work for me. The result was:
“FAILED (remote: ‘partition [recovery] doesn’t exist’)
fastboot: error: command failed”

So I use

fastboot flash boot twrpimagename.img

as is found in LineageOS manual: Install LineageOS on sailfish | LineageOS Wiki

The second point is with the next command in /e/ documentation:

fastboot boot twrpimagename.img

This also didn’t work, and the error was:
“FAILED (remote: ‘dtb not found’)
fastboot: error: Command failed”

So I choose to reboot into recovery, from bootloader’s menu.
As it didn’t load the recovery, I repeated the operation above but, as it turn off and on, I keeped the “Volume Down and Power” pressed “force” recovery boot and the recovery was loaded.