Documentation for users who may wish to setup or utilize their own
DHCP server.
Included reference to DHCP document in the Ironic install role.
Made a note regarding the port numbers used in the code examples.
Removed space.
Removed space and changed maximum width of text.
Change-Id: Ib799f40b6db99610f982790d26be1eb5b0f14ab8
Co-Authored-By: Julia Kreger <juliaashleykreger@gmail.com>
Co-Authored-By: Summer Barringer <yves.summer@gmail.com>
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