docs: update examples that returned streams

Author: dpopp07

examples/personality_insights.v3.js

@@ -78,9 +78,16 @@ personalityInsights.profile(
  * https://console.bluemix.net/docs/services/personality-insights/output-csv.html#outputCSV
  */
 personalityInsights
-  .profileAsCsv({
+  .profileAsCsv(
+  {
     content: 'Enter more than 100 unique words here...',
     content_type: 'text/plain',
     csv_headers: true
-  })
-  .pipe(fs.createWriteStream('./output.csv'));
+  },
+  (err, res) => {
+    if (err) {
+      console.log('error:', err);
+    } else {
+      fs.writeFileSync('./output.csv', res);
+    }
+  });

examples/text_to_speech_to_speakers.js

@@ -23,4 +23,11 @@ reader.on('format', function(format) {
   reader.pipe(new Speaker(format));
 });
 
-textToSpeech.synthesize({ text: 'hello from IBM Watson', accept: 'audio/wav' }).pipe(reader);
+textToSpeech
+  .synthesize({ text: 'hello from IBM Watson', accept: 'audio/wav' })
+  .then(res => {
+    res.pipe(reader);
+  })
+  .catch(err => {
+    console.log(err);
+  });