Add build docs

Docs/BUILD.md

@@ -0,0 +1,33 @@
+# Building the project into a package
+
+A unity package is simply a modified compressed file containg Unity assets(i.e images, scripts, configs, etc.).
+
+To build the project and export it as a unity package.
+You need to identify the version of unity you need to support.
+Due to the changes being made across versions, especially across major versions.
+You might need to make changes tailored to those versions.
+This is assuming the current version of the source code hasn't already made those changes
+for you.
+
+First download the source code.
+
+## Manually from Editor
+- Open the editor or unity hub, from there open the source code as a project.
+- Wait for the project to be loaded in and all dependencies fetched.
+- **Make all desired modifications.**
+- Ensure the project builds with no errors.
+- Open the projects tab.
+- Right-click on the Assets Folder in the Project tab. (Or click on the Assets folder in the project tab,
+selecting it and then click on Assets in the main menu bar)
+- Select Export Package.
+- Check the boxes of all required Items.
+- Deselect Include dependencies (so it doesn't pack unity version dependent files)
+- Select Include all scripts
+- Click on Export
+- Name the package and specify location to export package to.
+
+
+## Build from command line
+
+
+## Build using CI

README.md

@@ -21,4 +21,9 @@ Starknet Unity SDK lets game developers integrate Starknet blockchain functional
 
 1. Download the [latest release](https://github.com/NethermindEth/starknet.unity/releases) from this repository.
 2. Import the package into your Unity project.
-3. Follow the integration instructions provided in our [documentation](Docs/Documentation.md).
+3. Follow the integration instructions provided in our [documentation](Docs/INSTALL.md).
+
+## Build
+1. Downdload the source code
+2. Open the code in unity
+3. Follow the instruction provided in [documentation](Docs/BUILD.md)