Update docs to reflect fix on sourcing environments

[magnmaeh]

This update goes hand in hand with:

lf-lang/lf-west-template#7

@lhstrh Do you want me to update the docs for previous versions of docs as well? I assume this update will apply for all versions of the docs as well?

[erlingrj]

LGTM!

Regarding updating the earlier versions of the docs, I don't think it is that important. The docs already say that you should only have a single version of Zephyr installed, so technically they arent wrong.

[magnmaeh]

Oh haha, so the entire reason it failed initially was because I didn't properly read the docs 😅

But I guess that might be a common user mistake having more than one installation of Zephyr - and sourcing the zephyr-env.sh remedies that mistake

[erlingrj]

Oh haha, so the entire reason it failed initially was because I didn't properly read the docs 😅

But I guess that might be a common user mistake having more than one installation of Zephyr - and sourcing the zephyr-env.sh remedies that mistake

It wasn't exactly well documented and this is the right solution to that problem that will likely be common among potential users!