Update README with a small description.

[vdemeester]

Signed-off-by: Vincent Demeester [email protected]

[openshift-ci]

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[vdemeester]

/test all

[vdemeester]

/lgtm

This was to test in the openshift e2e would run on a README.md change, and they do not 👼🏼

[openshift-ci]

@vdemeester: you cannot LGTM your own PR.

In response to this:

/lgtm

This was to test in the openshift e2e would run on a README.md change, and they do not 👼🏼

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