Update the README

README.md

@@ -0,0 +1,63 @@
+# NVEXPO - Non-Volatile EXPOrt
+
+nxexpo it's a simple tool to define environment variables on-the-fly and persisting them between shell sessions.
+
+## Dependencies
+- Python 3.8
+
+### Dependencies to build
+- [Poetry](https://python-poetry.org/)
+
+### Dependencies to develop
+- [PoeThePoet](https://poethepoet.natn.io/)
+- [Ruff](https://docs.astral.sh/ruff/)
+- [MyPy](https://www.mypy-lang.org/)
+
+## Installation
+To install from the source follow the commands:
+```Bash
+$ poetry build
+$ pip install dist/nvexpo*.whl
+```
+
+And add the follow line to your `.bashrc` file:
+```Bash
+eval(nvexpo init bash)
+```
+
+## Basic usage
+The usage it's too simple. If you want to create a new env var into the current bash session use the command:
+```Bash
+$ nx weird_variable=101
+```
+
+Then, you can close the current terminal or terminate the bash session, and when you start a new one, your env vars will still be there :sparkles:.
+```Bash
+$ echo $weird_variable
+101
+```
+
+### Unset variables
+To unset variables you need to use flag `--unset`:
+```Bash
+$ nx var1="hello world"
+$ echo $var1
+hello world
+$ nx --unset var1
+$ echo $var1
+
+$ works!!
+```
+
+## Why?
+The main motivation for creating this tool was that in my work I like to have the Git branch I'm working on in `$branch`, but it's annoying to have to create it every time I restart or close the terminal I was working on.
+I could add it to `.bashrc` directly, but I would have to do it every time I have to work on a new branch and it wasn't comfortable.
+So now instead of having to type:
+```Bash
+branch="super_useful_change"
+```
+I have to write:
+```Bash
+nx branch="super_useful_change"
+```
+and that's it, no matter how many times I restart, my variable will be there.

pyproject.toml

@@ -8,7 +8,6 @@ readme = "README.md"
 [tool.poetry.dependencies]
 python = "^3.8"
 
-
 [tool.poetry.scripts]
 nvexpo = "nvexpo:main"
 
@@ -17,7 +16,7 @@ ruff = "^0.1.3"
 mypy = "^1.6.1"
 
 [tool.poe.tasks]
-format = "ruff format ."
+format = "ruff format nvexpo"
 linter = "ruff nvexpo"
 typing = "mypy nvexpo"