Update network-tutorial-standalone.md
Update network-tutorial-standalone.md

Container alpine4 already connected to alpine-net. It has to be connected to bridge.
JimGalasyn/docker.github.io,docker/docker.github.io,johnstep/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io,johnstep/docker.github.io,johnstep/docker.github.io,londoncalling/docker.github.io,thaJeztah/docker.github.io,johnstep/docker.github.io,anweiss/docker.github.io,londoncalling/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,JimGalasyn/docker.github.io,JimGalasyn/docker.github.io,anweiss/docker.github.io,anweiss/docker.github.io,thaJeztah/docker.github.io,anweiss/docker.github.io,johnstep/docker.github.io,anweiss/docker.github.io,londoncalling/docker.github.io,JimGalasyn/docker.github.io,londoncalling/docker.github.io,londoncalling/docker.github.io,JimGalasyn/docker.github.io