ref(example): update to use async/await

_example/README.md

@@ -23,7 +23,7 @@ install:
 ```text
 ~/.config/envman/PATH.env
 ~/.local/bin/foo
-~/.local/opt/foo
+~/.local/opt/foo/
 ```
 
 ## Cheat Sheet

_example/releases.js

@@ -12,17 +12,19 @@ var repo = 'ripgrep';
 /**                                                                          **/
 /******************************************************************************/
 
-module.exports = function (request) {
-  return github(request, owner, repo).then(function (all) {
-    return all;
-  });
+module.exports = async function (request) {
+  let all = await github(request, owner, repo);
+  return all;
 };
 
 if (module === require.main) {
-  module.exports(require('@root/request')).then(function (all) {
-    all = require('../_webi/normalize.js')(all);
+  (async function () {
+    let request = require('@root/request');
+    let normalize = require('../_webi/normalize.js');
+    let all = await module.exports(request);
+    all = normalize(all);
     // just select the first 5 for demonstration
     all.releases = all.releases.slice(0, 5);
     console.info(JSON.stringify(all, null, 2));
-  });
+  })();
 }