refacator: read configuration from env variables

README.md

@@ -1,23 +1,34 @@
 # minimal-connector
+
 ## Prerequisites
+
 * `node` and `npm` installed
-* a backend, which is running locally (on http://localhost:3000)
+* a backend, which is running locally (e.g. on http://localhost:3000)
+
 ## How to get started
+
 To install all required `npm` packages:
+
 ```shell script
 npm install
 ```
+
 To prepare the script to be executed, run:
+
 ```shell script
 npm run build
 ```
+
 To start the plugin, you need to execute the code in "CLI" script:
+
 ```shell script
 node lib/cli.js run <backendURL> <pluginName> <routeName> <URL> <port>
-e.g.:
+With fallback values being:
 node lib/cli.js run http://localhost:3000 minimal-plugin minimalPlugin http://localhost 4000
 ```
+
 ## Creating your own plugin
+
 * Modify the default values in `cli.ts` to your needs:
   * update the name
   * update the port
@@ -27,8 +38,11 @@ node lib/cli.js run http://localhost:3000 minimal-plugin minimalPlugin http://lo
 * Delete the `sum` function in `minimal-plugin.ts` and write your own logic inside the `onRouteInvoke` function
 * Define the layout of your http requests and responses inside the `/plugin/protocol` folder. The names of the interfaces
 need to be the same as the request and response names you defined in the `cli.ts`
+
 ## Code structure
+
 Folder `src` contains:
+
 * Reference implementations for CLI and a plugin
 * [/cli.ts](src/cli.ts)
   * minimal CLI to start your connector, that uses CLI-args, so that there are no hard coded values for configuration