[DOC] Changed the installation URL to the public version at Github
[DOC] Changed the installation URL to the public version at Github

sidcarter/elasticsearch-paramedic,sidcarter/elasticsearch-paramedic,Lensi/elasticsearch-paramedic,Lensi/elasticsearch-paramedic,Lensi/elasticsearch-paramedic,karmi/elasticsearch-paramedic,sidcarter/elasticsearch-paramedic,karmi/elasticsearch-paramedic