Update Express config environmental file name
Update Express config environmental file name

hmagph/otcnov10demo,dou800/text-to-speech-nodejs,hmagph/text-to-speech-nodejs-with-test,watson-developer-cloud/text-to-speech-nodejs,skaegi/text-to-speech-nodejs-with-saucelabs,hmagph/text-to-speech-nodejs-with-saucelabs,colinsf/text-to-speech-nodejs,sktay/text-to-speech-nodejs,hmagph/text-to-speech-nodejs-with-saucelabs,colinsf/text-to-speech-nodejs,skaegi/text-to-speech-nodejs-with-saucelabs,sktay/text-to-speech-nodejs,dou800/text-to-speech-nodejs,hmagph/text-to-speech-nodejs-with-test,hmagph/otcnov10demo