update launcher with some extra info

README.md

@@ -7,7 +7,7 @@ This application is built using [Godot](https://github.com/godotengine/godot)
 Godot may seem like an odd choice at first glance, but with its cross-platform abilities and an amazing set of GUI &
 IO features, it makes it very capabile for this application. 
 
-We are currently focusing on Linux, but are also working on support for Mac and Windows
+We can currently run on Mac, Windows and Linux.
 
 If you'd like to build from source check below.
 
@@ -22,6 +22,24 @@ Once you've gotten your development environment setup
 - Clone repo
 - Open the project and run
 
+### Important
+
+The app relies on external binaries to be downloaded from specific github release. This is a bit combersome,
+but was the best we could come up with for now.
+
+- chain_providers.cfg are where each of the sidechain configs start.
+	The hash and file size for each platform binary is manually generated and added to the config
+	for the release if it has changed.
+- version.cfg is where you would update the version and base github release url.
+	Sometimes you may need to create a pre-release, upload all the binaries there and point to that
+	as you are developing.
+- Currently each platform version is built on its respective platform. So build the launcher for linux on linux,
+	Mac on mac, and Windows on Windows.
+- Mac is a bit different as you need to have a developer ID certificate so that Godot can request signature and
+	notarization. Whom ever does this will need to create a signing certificate request and have Paul then create a
+	new developer ID certificate with that request. Then you would install that into you mac keychain.
+	More info here: https://developer.apple.com/help/account/create-certificates/create-developer-id-certificates
+
 ### LICENSE
 
 MIT License