Adds note about passing boolean arguments (#3268)
Adds note about passing boolean arguments (#3268)

Adds a sentence and example on how to use boolean arguments.
anweiss/docker.github.io,londoncalling/docker.github.io,JimGalasyn/docker.github.io,docker/docker.github.io,shin-/docker.github.io,londoncalling/docker.github.io,docker/docker.github.io,shin-/docker.github.io,shin-/docker.github.io,shubheksha/docker.github.io,londoncalling/docker.github.io,docker/docker.github.io,johnstep/docker.github.io,thaJeztah/docker.github.io,johnstep/docker.github.io,JimGalasyn/docker.github.io,johnstep/docker.github.io,johnstep/docker.github.io,shubheksha/docker.github.io,thaJeztah/docker.github.io,anweiss/docker.github.io,JimGalasyn/docker.github.io,shin-/docker.github.io,thaJeztah/docker.github.io,anweiss/docker.github.io,anweiss/docker.github.io,thaJeztah/docker.github.io,johnstep/docker.github.io,londoncalling/docker.github.io,anweiss/docker.github.io,shubheksha/docker.github.io,shubheksha/docker.github.io,shin-/docker.github.io,thaJeztah/docker.github.io,JimGalasyn/docker.github.io,docker/docker.github.io,JimGalasyn/docker.github.io,docker/docker.github.io,shubheksha/docker.github.io,londoncalling/docker.github.io