Adjust readme

README.md

@@ -19,3 +19,15 @@
 </div>
 
 # pixi-inject
+
+This is a simple executable that injects a conda package into an existing pixi environment.
+
+```bash
+pixi-inject --environment default --package my-package-0.1.0-py313h8aa417a_0.conda
+```
+
+You can also specify a custom conda prefix to inject the package into.
+
+```bash
+pixi-inject --prefix /path/to/conda/env --package my-package-0.1.0-py313h8aa417a_0.conda
+```