use -g and -e for continuous training

[todo]

speech-recognition/src/cli.py

Lines 16 to 21 in 08d8992

 # TODO: use -g and -e for continuous training 
 parser.add_argument("-g", "--gmm", help="Use GMM-HMM as the model.", default=False, action='store_true') 
 parser.add_argument("-e", "--em", help="Use EM algorithm to train models.", default=False, action='store_true') 
 args = parser.parse_args() 
  
 if args.action[0] == 'isolated_train': 

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This issue was generated by todo based on a TODO comment in 08d8992. It's been assigned to @tjysdsg because they committed the code.