Merge pull request #4 from XMRZombie/apple

Improving installation docs

docs/haveno-ui/get_started.md

@@ -8,6 +8,20 @@ Nothing to do expect launching the app and waiting for all services initalized
 ///
 
 
+### 1.1 Verify the package
+
+- It's also a good idea to verify your installer file with our [PGP key](https://haveno-reto.com/reto_public.asc)
+
+### 1.2 Installation
+
+- .dmg packages aren't verified by apple, so you'll have to do ```$ xattr -d com.apple.quarantine /Applications/Haveno.app``` for allowing installations from builds untrusted by apple.
+-  For installing a .deb: ```$ sudo apt install /path/to/haveno.deb```
+-  For flatpak: ```$ sudo flatpak install /path/to/Haveno.flatpak```
+-  For .appimages, make sure you marked haveno.appimage as an executable ```$ chmod +x /path/to/haveno.appimage```
+
+If you'd like to build Haveno-reto from source, [here are directions](https://github.com/retoaccess1/haveno-reto/blob/master/docs/installing.md).<br>
+Haveno is free/libre open-source software that you can contribute to [(github)](https://github.com/retoaccess1/haveno-reto).
+
 ![Image](../resources/img/haveno-ui/home.png)
 /// caption
 Once all services are ready, the market will be shown.