Add README.md file with instructions for using the Shulkerscript cli tool

README.md

@@ -0,0 +1,22 @@
+# Shulkerscript cli tool
+
+This is a cli tool for the shulkerscript language. It can be used to initialize a new project, and to compile and package a project.
+
+## Installation
+```bash	
+cargo install --git https://github.com/moritz-hoelting/shulkerscript
+```
+
+## Usage
+
+### Initialize a new project
+```bash
+shulkerscript init [OPTIONS] [PATH]
+```
+Where [PATH] is the path of the folder to initialize in [default: .]
+
+Options:
+- `--name <NAME>`                The name of the project
+- `--description <DESCRIPTION>`  The description of the project
+- `--pack-format <PACK_FORMAT>`  The pack format version
+- `--force`                      Force initialization even if the directory is not empty