Add Jacobi tutorial to documentation

[GeliezaK]

Added a tutorial on computing the 1D Jacobi method in parallel with PartitionedArrays to the documentation as a getting started page.

[fverdugo]

Hi @GeliezaK

the tutorial looks very good!

The documentation build is failing. Run it locally and try to reproduce the error? Maybe something related to mpi?

[GeliezaK]

Hi @fverdugo,
the issue did not appear when running it locally. So I have worked around it by putting the code that was executed with mpi in a markdown code block.

[fverdugo]

Hi @GeliezaK

Excellent Job!

Some minor comments:

• The output of @show and error messages (like when you index ranks[1]) do not show in the final page. Pleas rephrase the corresponding parts taking into account this. E.g, Perhaps remove the @show.

• Since we plan to add more tutorials (e.g. spmv), we need to create a new section called "Tutorials", and put this tutorial as the first one.

[GeliezaK]

Hi @fverdugo ,
thank you for your comments. I wrapped the errorneous lines in try-catch-blocks, removed the @show, and added the tutorial to a new "Tutorials" section.

[fverdugo]

See my minor comment.

[fverdugo]

Hi @GeliezaK

just a final (minor comment).

Please remove this .md file from the repo as it is generated automatically.

[GeliezaK]

Thanks! I deleted it.

[fverdugo]

@GeliezaK Thanks for this PR!