Documnetation: added the HOWTO on cross-compilation
Documnetation: added the HOWTO on cross-compilation

Signed-off-by: Alexander Kartashov <5dbba7f06b96156c7ec38c5bd8a847828ec59a50@parallels.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@parallels.com>

KKoukiou/criu-remote,gonkulator/criu,gablg1/criu,svloyso/criu,biddyweb/criu,LK4D4/criu,ldu4/criu,wtf42/criu,ldu4/criu,KKoukiou/criu-remote,KKoukiou/criu-remote,tych0/criu,sdgdsffdsfff/criu,tych0/criu,gablg1/criu,kawamuray/criu,efiop/criu,kawamuray/criu,AuthenticEshkinKot/criu,sdgdsffdsfff/criu,fbocharov/criu,kawamuray/criu,marcosnils/criu,rentzsch/criu,sdgdsffdsfff/criu,ldu4/criu,marcosnils/criu,rentzsch/criu,efiop/criu,biddyweb/criu,biddyweb/criu,sdgdsffdsfff/criu,svloyso/criu,gablg1/criu,KKoukiou/criu-remote,rentzsch/criu,ldu4/criu,rentzsch/criu,tych0/criu,wtf42/criu,KKoukiou/criu-remote,AuthenticEshkinKot/criu,biddyweb/criu,kawamuray/criu,wtf42/criu,AuthenticEshkinKot/criu,tych0/criu,gablg1/criu,fbocharov/criu,LK4D4/criu,AuthenticEshkinKot/criu,wtf42/criu,gablg1/criu,AuthenticEshkinKot/criu,eabatalov/criu,tych0/criu,marcosnils/criu,wtf42/criu,gonkulator/criu,marcosnils/criu,fbocharov/criu,kawamuray/criu,marcosnils/criu,eabatalov/criu,gonkulator/criu,LK4D4/criu,wtf42/criu,gonkulator/criu,efiop/criu,svloyso/criu,sdgdsffdsfff/criu,svloyso/criu,tych0/criu,LK4D4/criu,AuthenticEshkinKot/criu,gonkulator/criu,eabatalov/criu,rentzsch/criu,eabatalov/criu,eabatalov/criu,rentzsch/criu,fbocharov/criu,marcosnils/criu,fbocharov/criu,efiop/criu,svloyso/criu,gablg1/criu,fbocharov/criu,kawamuray/criu,LK4D4/criu,ldu4/criu,sdgdsffdsfff/criu,svloyso/criu,biddyweb/criu,efiop/criu,efiop/criu,gonkulator/criu,KKoukiou/criu-remote,LK4D4/criu,biddyweb/criu,ldu4/criu,eabatalov/criu