Update enb-bem-docs to 0.6.4
Update enb-bem-docs to 0.6.4

just-boris/bem-components,pepelsbey/bem-components,dojdev/bem-components,tadatuta/bem-components,tadatuta/bem-components,pepelsbey/bem-components,pepelsbey/bem-components,dojdev/bem-components,just-boris/bem-components,dojdev/bem-components,just-boris/bem-components,tadatuta/bem-components