Add installation and build instructions to the README

Author: CoffeeCoder1

README.md

@@ -1,5 +1,13 @@
-# 🎵 Godot-PureData
+# 🎵 Godot-Pure-Data
 
 > **Godot libpd without rebuilding Godot.** Supports 🪟Windows(x86_x64), 🐧Linux(x86_x64), & 🍎macOS(x86_x64, aarch64).
 
 This library works and is ready to use. But repo in progress. Hit me up with an issue.
+
+## Downloading
+
+For now, the best way to download this is downloading the `project` artifact of the latest CI build. Take a look at [this guide](https://docs.github.com/en/actions/managing-workflow-runs-and-deployments/managing-workflow-runs/downloading-workflow-artifacts) if you don't know how to do this. You will want the latest successful build from [this page](https://github.com/samsface/godot-pure-data/actions?query=event%3Apush+branch%3Amaster).
+
+## Building from source
+
+Most of the dependencies are bundled with the library as submodules. As long as you ran git clone with `--recurse-submodules` and you have CMake installed, you should just be able to run `dev.sh` to build.