update readme

Author: Marie Hoeger

README.md

@@ -8,7 +8,12 @@ The next step is to inlude function.json generation scripts in this project as w
 - npm install
 - npm start
 
-Check out app.ts code
+Check out `src` code for sample function app.
+`src/app.ts` is the entry point.
 
 ### Disclaimer
-I wanted to show that code in `common` and `functions` can be structured however you like. Worth thinking about what pattern we actually want to encourage, especially with how we want to do templates.
+I wanted to show that code in `common` and `functions` can be structured however you like. Worth thinking about what pattern we actually want to encourage, especially with how we want to do templates.
+
+This can all be in JavaScript, but I chose to write it in TypeScript.
+
+This is in a very early stage, the most helpful feedback will be on the intuitiveness/usability on exported classes. Note that trigger classes aren't fleshed out, but will be pretty much the same as: http://json.schemastore.org/function