Tighten up and clarify install docs
Tighten up and clarify install docs

chadmiller/securedrop,micahflee/securedrop,chadmiller/securedrop,jrosco/securedrop,ageis/securedrop,garrettr/securedrop,harlo/securedrop,jaseg/securedrop,kelcecil/securedrop,kelcecil/securedrop,ehartsuyker/securedrop,ehartsuyker/securedrop,pwplus/securedrop,jeann2013/securedrop,pwplus/securedrop,heartsucker/securedrop,heartsucker/securedrop,chadmiller/securedrop,chadmiller/securedrop,heartsucker/securedrop,jrosco/securedrop,chadmiller/securedrop,GabeIsman/securedrop,ageis/securedrop,jaseg/securedrop,jrosco/securedrop,ehartsuyker/securedrop,jaseg/securedrop,GabeIsman/securedrop,ehartsuyker/securedrop,jeann2013/securedrop,harlo/securedrop,harlo/securedrop,jeann2013/securedrop,ehartsuyker/securedrop,garrettr/securedrop,conorsch/securedrop,heartsucker/securedrop,harlo/securedrop,jeann2013/securedrop,kelcecil/securedrop,conorsch/securedrop,conorsch/securedrop,garrettr/securedrop,ageis/securedrop,jrosco/securedrop,jrosco/securedrop,garrettr/securedrop,jaseg/securedrop,kelcecil/securedrop,pwplus/securedrop,conorsch/securedrop,GabeIsman/securedrop,harlo/securedrop,micahflee/securedrop,chadmiller/securedrop,kelcecil/securedrop,GabeIsman/securedrop,pwplus/securedrop,ehartsuyker/securedrop,jaseg/securedrop,jaseg/securedrop,heartsucker/securedrop,jeann2013/securedrop,kelcecil/securedrop,micahflee/securedrop,pwplus/securedrop,micahflee/securedrop,GabeIsman/securedrop,conorsch/securedrop,jeann2013/securedrop,harlo/securedrop,GabeIsman/securedrop,pwplus/securedrop,ageis/securedrop,jrosco/securedrop