Katib: Fix getting started example

[andreyvelich]

I fixed the Katib getting started example.

Also, I added the command to install SDK from the master branch and from the commit.

/assign @tenzen-y @johnugeorge @helenxie-bit

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In response to this:

I fixed the Katib getting started example.

Also, I added the command to install SDK from the master branch and from the commit.

/assign @tenzen-y @johnugeorge @helenxie-bit

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[tenzen-y]

Thank you!
/lgtm
/approve

[andreyvelich]

/approve

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andreyvelich, tenzen-y

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Needs approval from an approver in each of these files:

• content/en/docs/components/katib/OWNERS [andreyvelich]
• content/en/docs/components/training/OWNERS [andreyvelich]

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