ta dando esse erro quando executo o comando
docker run -p 8080:3000 -v "C:\Users\rsilva\Documents\docker\volume-exemplo:/var/www" -w "/var/www" node npm start
C:\Program Files\Docker\Docker\Resources\bin\docker.exe: Error response from daemon: the working directory 'C:/Program Files/Git/var/www' is invalid, it needs to be an absolute path. See 'C:\Program Files\Docker\Docker\Resources\bin\docker.exe run --help'.