fix(cli): fix crash

Author: RomanHotsiy

cli/index.ts

@@ -113,15 +113,15 @@ yargs
       }
     },
   )
+  .demandCommand()
   .options('t', {
     alias: 'template',
     describe: 'Path to handlebars page template, see https://git.io/vxZ3V for the example ',
     type: 'string',
   })
   .options('options', {
     describe: 'ReDoc options, use dot notation, e.g. options.nativeScrollbars',
-  })
-  .demandCommand().argv;
+  }).argv;
 
 async function serve(port: number, pathToSpec: string, options: Options = {}) {
   let spec = await loadAndBundleSpec(pathToSpec);

cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "redoc-cli",
-  "version": "0.3.1",
+  "version": "0.3.3",
   "description": "ReDoc's Command Line Interface",
   "main": "index.js",
   "bin": "index.js",
@@ -12,7 +12,8 @@
     "isarray": "^2.0.4",
     "react": "^16.3.0-alpha.2",
     "react-dom": "^16.3.0-alpha.2",
-    "redoc": "^2.0.0-alpha.15"
+    "redoc": "^2.0.0-alpha.15",
+    "yargs": "^11.0.0"
   },
   "scripts": {
     "ci-publish": "ci-publish"