Review Request 40748: Updated documentation to point out the need of a resolvable hostname.

[Till Toenshoff]

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Review request for mesos, Bernd Mathiske, Lukas Loesche, and Timothy Chen.


Bugs: MESOS-3937
    https://issues.apache.org/jira/browse/MESOS-3937


Repository: mesos


Description
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see summary.


Diffs
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  docs/getting-started.md d120ad42d6e783048e6261750a9e7ad650d03669 

Diff: https://reviews.apache.org/r/40748/diff/


Testing
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Thanks,

Till Toenshoff