fix(doc): adjust development doc

Author: bigopon

README.md

@@ -152,42 +152,19 @@ To build the code, follow these steps.
   ```shell
   npm install
   ```
-3. Ensure that [Gulp](http://gulpjs.com/) is installed. If you need to install it, use the following command:
-
-  ```shell
-  npm install -g gulp
-  ```
-4. To build the code, you can now run:
+3. To build the code, you can now run:
 
   ```shell
   gulp build
   ```
-5. You will find the compiled code in the `dist` folder, available in three module formats: AMD, CommonJS and ES6.
-
-6. See `gulpfile.js` for other tasks related to generating the docs and linting.
+4. You will find the compiled code in the `dist` folder, available in module formats: es2015, es2017, AMD, CommonJS and UMD.
 
 ## Running The Tests
 
 To run the unit tests, first ensure that you have followed the steps above in order to install all dependencies and successfully build the library. Once you have done that, proceed with these additional steps:
 
-1. Ensure that the [Karma](http://karma-runner.github.io/) CLI is installed. If you need to install it, use the following command:
-
-  ```shell
-  npm install -g karma-cli
-  ```
-2. Ensure that [jspm](http://jspm.io/) is installed. If you need to install it, use the following commnand:
-
-  ```shell
-  npm install -g jspm
-  ```
-3. Install the client-side dependencies with jspm:
-
-  ```shell
-  jspm install
-  ```
-
-4. You can now run the tests with this command:
+1. Run the tests with this command:
 
   ```shell
-  karma start
+  npm run test
   ```