Update README.md

README.md

@@ -1,3 +1,15 @@
-# nixsa
+# Nixsa - Nix Standalone Environment
+
+Nixsa lets you experience Nix without any installation. Just extract the tarball and you're ready to go!
+
+```bash
+wget https://github.com/noamraph/nixsa/releases/download/v0.1.0/nixsa-0.1.0-x86_64-linux.tar.xz
+tar -xf nixsa-0.1.0-x86_64-linux.tar.xz
+nixsa/bin/nix profile install nixpkgs#ponysay
+nixsa/bin/ponysay 'Hi Nixsa!'
+```
+
+Important note: Nixsa currently uses a patched version of Nix, which supports environment variables like NIX_STATE_HOME. Upvote the PR so Nixsa could use a regular Nix version.
+
+[![asciicast](https://asciinema.org/a/672617.svg)](https://asciinema.org/a/672617)
 
-Describe your project here.