Link to manual install instructions from README.
Link to manual install instructions from README.

[#92643338 #92695944] gh-98

Signed-off-by: Kristie-Lynne Koss <b6ebd6e8bc77ed89e2b529234243864da8b54e7b@pivotal.io>

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