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README.md

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 # JEM
 JEM is a Java Environment Manager written in go 
+
+## Installation
+Download the latest release from the [releases page](https://github.com/LDprg/JEM/releases) and extract it to a folder of your choice.
+
+> Uninstall all other Java versions before installing JEM.
+
+You will need to restart your terminal after installation in order to update your PATH.
+
+### Linux & Mac
+Run:
+```bash
+./jem_install
+```
+You may need to reload the .bashrc file after installation:
+```bash
+source ~/.bashrc
+```
+
+### Windows
+Run:
+```bash
+jem_install.exe
+```
+
+## Usage
+```bash
+jem [command] [options]
+```
+
+### Commands
+#### list
+```bash
+jem list
+```
+Lists the current, installed and installable versions of java
+
+#### install
+```bash
+jem install [version]
+```
+Installs the specified version of java
+
+#### use
+```bash
+jem use [version]
+```
+Sets the current version of java
+
+#### uninstall
+```bash
+jem uninstall [version]
+```
+Uninstalls the specified version of java
+
+## Uninstallation
+
+> Notice: This will remove all installed versions of java
+
+### Linux & Mac
+Run:
+```bash
+./jem_uninstall
+```
+
+### Windows
+Run:
+```bash
+jem_uninstall.exe
+```
+
+## Contributing
+Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
+
+## License
+This projets use the [MIT](https://choosealicense.com/licenses/mit/) License.
+
+## Where does the java versions come from?
+The java versions are downloaded with [Adoptium Api](https://adoptium.net/).