[PC-1197] Wordpress and Database Portenta X8 Tutorial Update

[Jorgetrujilloroman]

What This PR Changes

• Some changes to the tutorial fixing the docker-compose.yml code and adding a download link to make it easy for the users. Adding an uninstalling section.

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• I confirm that I have read the contribution guidelines and comply with them.

[gatsby-cloud]

✅ docs-content deploy preview ready

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[jcarolinares]

@TaddyHC can you spend maximum 30 minutes of your time following the changes with a Portenta X8 to verify that those changes work?

We would like to be sure! :)

[TaddyHC]

@TaddyHC can you spend maximum 30 minutes of your time following the changes with a Portenta X8 to verify that those changes work?

We would like to be sure! :)

@jcarolinares Sure, I'll check out the changes and post update here when possible!

[TaddyHC]

@Jorgetrujilloroman I took the liberty of reviewing and have made a direct change to help you a bit with the process and made some reviews on top of it so you can check the reason behind the suggestion. Please have a look at it.

@jcarolinares I have tested by using the updated docker-compose.yml script of this PR and it seems to be working fine as I was able to replicate a successful result. I made some small changes to suggest to ease the tutorial walkthrough. Please let us know how you see it.

🙂

[jcarolinares]

Changes done by @Jorgetrujilloroman

Technical review done by @TaddyHC including the real testing of the tutorials

Additional changes suggested by @TaddyHC to improve the tutorial addressed by @Jorgetrujilloroman

Double-check by @jcarolinares

Ready to merge, please @Jorgetrujilloroman proceed.

cc @martab1994 FYI we have updated the tutorial to solve some small problems and a big one related with the yml file outdated and not working on the latest versions of the firmware.