Portuguese translation of movement tutorial

[cmbarton]

This is identical to the English tutorial on the GRASS tutorial site except for language and a few formatting tweaks (e.g., lightroom) that have been added to other tutorials. I'll make these same formatting tweaks in a new PR for the English one.

[petrasovaa]

We shouldn't be translating the categories, but you can add Spanish category

[cmbarton]

We shouldn't be translating the categories, but you can add Spanish category

Do you mean the tags in the header? You mean to add a tag/category "Portuguese"?

[petrasovaa]

We shouldn't be translating the categories, but you can add Spanish category

Do you mean the tags in the header? You mean to add a tag/category "Portuguese"?

Yes, sorry, I meant Portuguese

[cmbarton]

Categories returned to English and Português added.