Add readme and improve build script

.gitignore

@@ -1,6 +1,7 @@
 demo/bin
 
 .idea
+
 # Godot auto generated files
 *.gen.*
 .import/

build.py

@@ -42,7 +42,7 @@ ios.release = {{
 }}
     """.format(PROJECT_NAME)
 
-    gdextension_file_path = "demo/template.gdextension"
+    gdextension_file_path = f"demo/{PROJECT_NAME}.gdextension"
 
     with open(gdextension_file_path, "w") as gdextension_file:
         gdextension_file.write(gdextension_file_content)

readme.md

@@ -0,0 +1,58 @@
+# Redot GDExtension Template
+
+This repository provides a template for create GDExtensions. This template provides a basic layout including a demo
+project which can be used to test your extension. It also provides a small file (`build.py`) which can generate a
+`template.gdextension` file for you. This file should automatically enable your extension within the editor.
+
+This project uses Redot 26.1 as the basis for creating extensions. In the future, there will probably be branches
+dedicated to future versions of Redot. This repository is based on the [official GDExtension tutorial][1].
+
+## Using this template
+
+To set up a repository using this template, simply click the "Use this template" button in the top right of this
+repository. You will then be presented with a new repository wizard that will guide you through the remaining setup 
+steps.
+
+## Building the extension.
+
+To build projects created with this template, you will need to run `scons`. If you have not already setup your system
+for developing Redot extensions or extending the core editor, you can find instructions for doing so 
+[here](https://docs.redotengine.org/contributing/development/compiling/). These steps are designed to help you build
+the entire Redot project, but you will need an understanding of how to do that in order to build extensions.
+
+I also strongly recommend that you read the [guide on C++ GDExtensions][2]
+if you have not already done so to get the fullest picture of how GDExtensions are intended to work.
+
+Once you have setup your repository and cloned it to your local machine, you can build the extension by running:
+```sh
+scons
+```
+
+If you would like to build your extension with the help of an IDE, you may want to have `scons` generate a 
+`build_commands.json` file by building your project with the `compiledb=yes` option as below:
+
+```sh
+scons compiledb=yes
+```
+
+## Customizing your build artifact name
+
+By default, this project is configured to output a shared library titled `libgdextension_template`, however you can
+easily change this by modifying the `PROJECT_NAME` property in the `build.py` file. `scons` will automatically 
+incorporate this variable into your compilation artifact.
+
+## Generating a template.gdextension file
+
+This repository comes with a simple Python script that will generate a `*.gdextension` file and place it
+in the `demo` directory. Redot requires this file to load your GDExtension, so using this script will get you started
+quickly.
+
+```sh
+python build.py
+```
+
+The script will also read the value of the `PROJECT_NAME` property so that the `*.gdextension` file will reflect the
+name of your extension.
+
+[1]: https://docs.redotengine.org/tutorials/scripting/gdextension/
+[2]: https://docs.redotengine.org/tutorials/scripting/gdextension/