Eagle-1073 - Docker documentation incorrect

[coheigea]

Be sure to do all of the following to help us incorporate your contribution quickly and easily:

• [ ] Make sure the PR title is formatted like: [EAGLE-<Jira issue #>] Description of pull request
• [ ] Make sure tests pass via mvn clean verify. (Even better, enable Travis-CI on your fork and ensure the whole test matrix passes).
• [ ] Replace <Jira issue #> in the title with the actual Jira issue number, if there is one.
• [ ] If this contribution is large, please file an Apache Individual Contributor License Agreement.

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[coheigea]

@jhsenjaliya OK I fixed that.