Tweak spacing in INSTALL.md
Tweak spacing in INSTALL.md

(the steps I outdented aren't Git resources)
iamBalaji/Calagator,L2-D2/calagator,VolunteerOdyssey/calagator,cp/calagator-1,jmcduffie32/calagator,cp/calagator-1,L2-D2/calagator,kerrizor/calagator,bencornelis/calagator,cp/calagator-1,VolunteerOdyssey/calagator,oktober/calagator,jmcduffie32/calagator,bencornelis/calagator,kerrizor/calagator,bencornelis/calagator,kerrizor/calagator,reidab/calagator,shawnacscott/calagator,alexbeeken/calagator.org,L2-D2/calagator,jmcduffie32/calagator,iamBalaji/Calagator,VolunteerOdyssey/calagator,nblackburn87/calagator,reidab/calagator,eeeeeean/windchimes,L2-D2/calagator,dudleysr/calagator-workspace,oktober/calagator,shawnacscott/calagator,jmcduffie32/calagator,oktober/calagator,cp/calagator-1,reidab/calagator,iamBalaji/Calagator,dudleysr/calagator-workspace,matthewkmayer/calagator,oktober/calagator,iamBalaji/Calagator,reidab/calagator,shawnacscott/calagator,shawnacscott/calagator,kerrizor/calagator,matthewkmayer/calagator,eeeeeean/windchimes,alexbeeken/calagator.org,matthewkmayer/calagator,bencornelis/calagator,nblackburn87/calagator,matthewkmayer/calagator,nblackburn87/calagator