MOB-277 fixed typo in upgrade guide
MOB-277 fixed typo in upgrade guide

jwilson-rodale/jump.ios,Rodale/jump.ios,jwilson-rodale/jump.ios,jwilson-rodale/jump.ios,Rodale/jump.ios,jwilson-rodale/jump.ios,Rodale/jump.ios,Rodale/jump.ios,jwilson-rodale/jump.ios,Rodale/jump.ios