Added video streaming and sample file

Added bigbuck.mp4, the sample file
Install nodemon module for streaming
Modified  index.html to contain the video, and changed the title
Modified index.js to add /video dir for the video streaming

node_modules/simple-update-notifier/build/index.d.ts

@@ -0,0 +1,13 @@
+interface IUpdate {
+    pkg: {
+        name: string;
+        version: string;
+    };
+    updateCheckInterval?: number;
+    shouldNotifyInNpmScript?: boolean;
+    distTag?: string;
+    alwaysRun?: boolean;
+    debug?: boolean;
+}
+declare const simpleUpdateNotifier: (args: IUpdate) => Promise<void>;
+export { simpleUpdateNotifier as default };