Document how to address vagrant IP conflict errors.
Document how to address vagrant IP conflict errors.

[Finishes #101992188]

Signed-off-by: Colin Jackson <4f4efc23f45cfd2ccaeb623d4ab84100edb791f6@pivotal.io>

felipeg48/lattice,SrinivasChilveri/lattice,datachand/lattice,Klaudit/lattice,SrinivasChilveri/lattice,svrc-pivotal/lattice,SrinivasChilveri/lattice,davidwadden/lattice-release,datachand/lattice,Klaudit/lattice,davidwadden/lattice,svrc-pivotal/lattice,cloudfoundry-incubator/ltc,davidwadden/lattice-release,svrc-pivotal/lattice,Klaudit/lattice,datachand/lattice,cloudfoundry-incubator/ltc,felipeg48/lattice,Klaudit/lattice,svrc-pivotal/lattice,SrinivasChilveri/lattice,datachand/lattice,davidwadden/lattice