add git checkout to update docs
add git checkout to update docs

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