docs: add build instructions

This commit closes #35 and closes #36

README.md

@@ -51,6 +51,36 @@ $ sudo snap install iptvnator
 
 [![Get it from the Snap Store](https://snapcraft.io/static/images/badges/en/snap-store-black.svg)](https://snapcraft.io/iptvnator)
 
+<a href="https://www.buymeacoffee.com/4gray" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/default-green.png" alt="Buy Me A Coffee" width="185"></a>
+
+## How to build
+
+Requirements: node.js with npm.
+
+1. Clone this repository and install all project dependencies with:
+   ```
+   $ npm install
+   ```
+
+2. To build the application on your local machine use one of the following commands:
+   ```
+   # linux
+   $ npm run electron:build:linux
+   ```
+
+   ```
+   #mac
+   $ npm run electron:build:mac
+   ```
+
+   ```
+   # windows
+   $ npm run electron:build:windows
+   ```
+
+This command will produce the distributable assets in the `release` folder based on the configuration from electron-builder which is stored in `electron-builder.json` and `package.json`. Check the [API description of electron-builder](https://www.electron.build/) and adapt the configuration if you need some special configuration for you environment.
+
+*Note: Don’t expect that you can build app for all platforms on one platform. [Read details](https://www.electron.build/multi-platform-build)*
 
 ## Disclaimer
 

package.json

@@ -33,6 +33,9 @@
     "electron:serve": "wait-on tcp:4200 && npm run electron:serve-tsc && npx electron . --serve",
     "electron:local": "npm run build:prod && npx electron .",
     "electron:build": "npm run build:prod && electron-builder build",
+    "electron:build:mac": "npm run build:prod && electron-builder build -m",
+    "electron:build:linux": "npm run build:prod && electron-builder build -l --x64 --ia32 --arm64 --armv7l",
+    "electron:build:windows": "npm run build:prod && electron-builder build -w",
     "test": "jest",
     "test:watch": "jest --watch",
     "e2e": "npm run build:prod && cross-env TS_NODE_PROJECT='e2e/tsconfig.e2e.json' mocha e2e/**/*.ts --config ./.mocharc.json --exit",