checking in docs for github.io page

docs/step2-01/exercise/src/index.ts

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+const app = document.getElementById('app');
+const textarea = document.createElement('textarea');
+textarea.setAttribute('readonly', 'true');
+app.appendChild(textarea);
+function log(results: string) {
+  textarea.innerText += results;
+}
+
+// Some setup code for exercises
+const obj1 = {
+  first: 'who',
+  second: 'what',
+  third: 'dunno',
+  left: 'why'
+};
+
+const obj2 = {
+  center: 'because',
+  pitcher: 'tomorrow',
+  catcher: 'today'
+};
+
+function makePromise() {
+  return Promise.resolve(5);
+}
+
+// Do the exercises here, output your results with "log()" function
+// ...
+log('hello world');
+
+(async () => {
+  // Place your code for the async / await exercise here
+  // ...
+})();