docs: define style of code blocks inside descriptions
docs: define style of code blocks inside descriptions

shugaoye/libvirt,andreabolognani/libvirt,crobinso/libvirt,eskultety/libvirt,datto/libvirt,elmarco/libvirt,crobinso/libvirt,jardasgit/libvirt,zippy2/libvirt,eskultety/libvirt,zippy2/libvirt,zhlcindy/libvirt-1.1.4-maintain,rlaager/libvirt,zhlcindy/libvirt-1.1.4-maintain,agx/libvirt,cbosdo/libvirt,datto/libvirt,fabianfreyer/libvirt,elmarco/libvirt,olafhering/libvirt,agx/libvirt,zippy2/libvirt,taget/libvirt,cbosdo/libvirt,jfehlig/libvirt,jardasgit/libvirt,andreabolognani/libvirt,eskultety/libvirt,nertpinx/libvirt,olafhering/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,libvirt/libvirt,shugaoye/libvirt,rlaager/libvirt,fabianfreyer/libvirt,datto/libvirt,zhlcindy/libvirt-1.1.4-maintain,jardasgit/libvirt,shugaoye/libvirt,taget/libvirt,eskultety/libvirt,shugaoye/libvirt,elmarco/libvirt,andreabolognani/libvirt,shugaoye/libvirt,olafhering/libvirt,rlaager/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,nertpinx/libvirt,taget/libvirt,jardasgit/libvirt,crobinso/libvirt,datto/libvirt,VenkatDatta/libvirt,crobinso/libvirt,datto/libvirt,libvirt/libvirt,nertpinx/libvirt,agx/libvirt,libvirt/libvirt,nertpinx/libvirt,taget/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,olafhering/libvirt,zhlcindy/libvirt-1.1.4-maintain,jardasgit/libvirt,rlaager/libvirt,agx/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,zhlcindy/libvirt-1.1.4-maintain,libvirt/libvirt,rlaager/libvirt,zippy2/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,cbosdo/libvirt,elmarco/libvirt,agx/libvirt,cbosdo/libvirt,taget/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,eskultety/libvirt,cbosdo/libvirt,elmarco/libvirt