Update drupal book link
Update drupal book link

reszli/DrupalConsole,longloop/DrupalConsole,alxvallejo/DrupalConsole,revagomes/DrupalConsole,dkgndec/DrupalConsole,frega/DrupalConsole,AniRai/DrupalConsole,Cottser/DrupalConsole,Cottser/DrupalConsole,AniRai/DrupalConsole,reszli/DrupalConsole,longloop/DrupalConsole,AniRai/DrupalConsole,Cottser/DrupalConsole,dkgndec/DrupalConsole,dkgndec/DrupalConsole,revagomes/DrupalConsole,karmazzin/DrupalConsole,karmazzin/DrupalConsole,frega/DrupalConsole,reszli/DrupalConsole,karmazzin/DrupalConsole,alxvallejo/DrupalConsole,revagomes/DrupalConsole,longloop/DrupalConsole,frega/DrupalConsole,alxvallejo/DrupalConsole