old_contents: 
  var bitcodin = require('bitcodin')('YOUR_API_KEY'), createTransmuxPromise, transmuxDetails;
  
  //Please see our documentation regarding transmuxing for more details:
  //http://docs.bitcodinrestapi.apiary.io/#reference/transmux-*beta*/transmux/create-a-transmux
  
  var transmuxConfiguration = {
      "jobId": 123456,                                    //required
      "videoRepresentationId": 98765,                     //required
      "audioRepresentationIds": [91234],                  //required
      "filename": "optional-custom-output-filename.mp4"   //optional
  };
  
  // Create a Transmux
  createTransmuxPromise = bitcodin.transmux.create(transmuxConfiguration);
  createTransmuxPromise.then(
      function (transmuxResponse) {
          transmuxDetails = transmuxResponse;
          console.log('Successfully created a new transmuxing');
      },
      function (transmuxDetails) {
          console.log('Error while creating a new transmuxing', transmuxDetails);
      }
  );
  
  crateTransmuxPromise = bitcodin.transmux.get(transmuxDetails.id);
  createTransmuxPromise.then(
      function (transmuxResponse) {
          console.log('Successfully got transmuxing details: ', transmuxResponse);
      },
      function (response) {
          console.log('Error while fetching transmuxing details', response);
      }
  );
new_contents: 
  var bitcodin = require('bitcodin')('YOUR_API_KEY'), createTransmuxPromise, transmuxDetails;
  
  //Please see our documentation regarding transmuxing for more details:
  //http://docs.bitcodinrestapi.apiary.io/#reference/transmux-*beta*/transmux/create-a-transmux
  
  var transmuxConfiguration = {
      "jobId": 123456,                                    //required
      "videoRepresentationId": 98765,                     //required
      "audioRepresentationIds": [91234],                  //required
      "filename": "optional-custom-output-filename.mp4"   //optional
  };
  
  // Create a Transmux
  createTransmuxPromise = bitcodin.transmux.create(transmuxConfiguration);
  createTransmuxPromise.then(
      function (transmuxResponse) {
          transmuxDetails = transmuxResponse;
          console.log('Successfully created a new transmuxing');
      },
      function (transmuxDetails) {
          console.log('Error while creating a new transmuxing', transmuxDetails);
      }
  );
  
  createTransmuxPromise = bitcodin.transmux.get(transmuxDetails.id);
  createTransmuxPromise.then(
      function (transmuxResponse) {
          console.log('Successfully got transmuxing details: ', transmuxResponse);
      },
      function (response) {
          console.log('Error while fetching transmuxing details', response);
      }
  );
  
subject: fix spelling error on variable, crate to create