docs/lxc: improved lxc docs.
docs/lxc: improved lxc docs.

Endika/tsuru,ggarnier/tsuru,ggarnier/tsuru,hcxiong/tsuru,hcxiong/tsuru,ArxdSilva/tsuru,ggarnier/tsuru,kgrvamsi/tsuru,mderaldo/tsuru,Endika/tsuru,hcxiong/tsuru,gciotta/tsuru,jblancett/tsuru,4eek/tsuru,tsuru/tsuru,tuxmonteiro/tsuru,jblancett/tsuru,tuxmonteiro/tsuru,kgrvamsi/tsuru,guilhermebr/tsuru,ArxdSilva/tsuru,tuxmonteiro/tsuru,ArxdSilva/tsuru,firebitsbr/tsuru,jblancett/tsuru,guilhermebr/tsuru,guilhermebr/tsuru,hugoantunes/tsuru,tsuru/tsuru,RichardKnop/tsuru,4eek/tsuru,cezarsa/tsuru,cgvarela/tsuru,gciotta/tsuru,kgrvamsi/tsuru,cgvarela/tsuru,guilhermebr/tsuru,ArxdSilva/tsuru,RichardKnop/tsuru,RichardKnop/tsuru,gwmoura/tsuru,tsuru/tsuru,Endika/tsuru,gwmoura/tsuru,gwmoura/tsuru,mderaldo/tsuru,4eek/tsuru,tsuru/tsuru,ggarnier/tsuru,cezarsa/tsuru,cezarsa/tsuru,hugoantunes/tsuru,firebitsbr/tsuru,mderaldo/tsuru,cezarsa/tsuru,gciotta/tsuru,firebitsbr/tsuru,cgvarela/tsuru