update to latest standards

docs/index.md

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+## Usage
+Use TypeScript for best in class instellisense.
+
+qenv works with two files:
+
+* **qenv.yml** - specifies which ENV vars are required.
+* **env.yml** - specifies all env vars that are not already set in the current environment.
+
+Now obviously you can set build specific env vars in many CI environments.
+So there we do not need an **env.yml** since all ENV vars are in place
+However when on another machine you can have a env.yml that will be added to the environment by qenv.
+
+```javascript
+import {Qenv} from "qenv";
+
+myQenv = new Qenv("path/to/dir/where/qenv.yml/is/","path/to/dir/where/env.yml/is(");
+
+```