Improve frontend readme

Author: aLLeXUs

frontend/README.md

@@ -1,5 +1,14 @@
 # BSA 2019 Thread project (frontend)
 
+## Technologies
+
+* [Vue.js](https://vuejs.org/) framework
+* [vue-cli](https://cli.vuejs.org/)
+* [vue-router](https://router.vuejs.org/)
+* [vuex](https://vuex.vuejs.org/)
+* [Buefy](https://buefy.org/) UI framework
+* [pusher-js](https://github.com/pusher/pusher-js)
+
 ## Getting started
 
 Install the following packages prior to standing up your development environment:
@@ -13,14 +22,14 @@ cp .env.example .env.local
 yarn install
 ```
 
-Configure your .env.local
+Configure your `.env.local`:
 ```
 VUE_APP_API_URL=http://<host>:<port>/api/v1
 VUE_APP_PUSHER_APP_KEY=<pusher-app-key>
 VUE_APP_PUSHER_APP_CLUSTER=<pusher-app-cluster>
 VUE_APP_PUSHER_APP_AUTH_ENDPOINT=http://<host>:<port>/broadcasting/auth
 ```
 
-Replace `<host>` and `<port>` according to your backend url. You should register and create application on [Pusher](https://pusher.com/) site to get `<pusher-app-key>` and `<pusher-app-cluster>` variables.
+Replace `<host>` and `<port>` according to your backend URL. You should register an account and create an application on [Pusher](https://pusher.com/) site to get `<pusher-app-key>` and `<pusher-app-cluster>` variables. These credentials also should be used on the backend.
 
 After that application is ready. You can run it in development mode with `yarn run serve` or `yarn run build` to generate compiled and minified files.