Add README

Consider repo as submodule.

README.md

@@ -0,0 +1,9 @@
+# webvideo-transcript-summary-web-api
+
+This is the Web API for summarizing transcripts for Web videos.
+
+## Setup
+
+1. Install dependencies.
+2. Run `npm run build` to build the project.
+3. Run `npm start` to start the server.