rename getting started to fix broken link

[rui-vas]

Fixes #2634

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[rui-vas]

[URGENT] - @castrojo @thesuperzapper I need a LGTM here to merge this. The title change broke the master branch (glad we are not pointing to it yet!)

[davidspek]

/lgtm

[rui-vas]

Thank you @davidspek ! With urgency we did not test the branch and it got broken. Hopefully this fixes it. Testing now

[Bobgy]

thanks, makes sense to me.

keep in mind that any proper file rename needs

• fixing existing links
• adding redirect rules

[thesuperzapper]

@RFMVasconcelos should we rename this to installing-kubeflow, and add a redirect?