Getting started guide outdated: Step 4 - Install a toolchain

[gustavovelascoh]

Is your enhancement proposal related to a problem? Please describe.
When following the Getting Started Guide, in step 4, version 0.11.4 is used for the example command, but using the link to check the latest, version 0.12.1 is shown.

Download the latest SDK installer:

cd ~
wget https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.11.4/zephyr-sdk-0.11.4-setup.run

However, just by replacing the version number does not work because, as far as I know, the naming convention changed, now including the host architecture.

Describe the solution you'd like
Either update to the latest naming convention or indicate the difference between versions 0.11.x and 0.12.x. The new command that worked for me was:

wget https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.12.1/zephyr-sdk-0.12.1-x86_64-linux-setup.run

Describe alternatives you've considered
NA

Additional context

• The building of the blinky example throws an error indicating that dtc version is not supported, even when it was installed in a previous step
• The "Install Linux Host Dependencies" section has the same issue. it states that replacing the version number should work.