nix-channel grammar and punctuation
nix-channel grammar and punctuation

Minor changes to the nix-channel manpage for my first contribution
ehmry/nix,dtzWill/nix,pikajude/nix,shlevy/nix,dezgeg/nix,peti/nix,zimbatm/nix,rycee/nix,pikajude/nix,layus/nix,NixOS/nix,dezgeg/nix,peti/nix,zimbatm/nix,vcunat/nix,layus/nix,ehmry/nix,dtzWill/nix,vcunat/nix,dtzWill/nix,ehmry/nix,ehmry/nix,ehmry/nix,peti/nix,vcunat/nix,NixOS/nix,NixOS/nix,rycee/nix,layus/nix,NixOS/nix,shlevy/nix,rycee/nix,dezgeg/nix,peti/nix,vcunat/nix,dtzWill/nix,pikajude/nix,dtzWill/nix,shlevy/nix,dezgeg/nix,NixOS/nix,layus/nix,shlevy/nix,shlevy/nix,rycee/nix,rycee/nix,peti/nix,zimbatm/nix,layus/nix,ehmry/nix,dezgeg/nix,zimbatm/nix