[PIO-180] Livedoc readme link update (#479)
[PIO-180] Livedoc readme link update (#479)


shimamoto/incubator-predictionio,marevol/incubator-predictionio,PredictionIO/PredictionIO,marevol/incubator-predictionio,PredictionIO/PredictionIO,shimamoto/incubator-predictionio,shimamoto/incubator-predictionio,marevol/incubator-predictionio,takezoe/incubator-predictionio,takezoe/incubator-predictionio,shimamoto/incubator-predictionio,takezoe/incubator-predictionio,PredictionIO/PredictionIO,marevol/incubator-predictionio,takezoe/incubator-predictionio