Update install instructions (#5)

Author: maxrjones

README.md

@@ -9,7 +9,7 @@ Python library for creating and validating [GeoZarr](https://github.com/zarr-dev
 ## Installation
 
 ```bash
-pip install "geozarr-toolkit @ git+https://github.com/zarr-developers/geozarr-toolkit.git"
+pip install "geozarr-toolkit"
 ```
 
 ## Quick start

docs/getting-started.md

@@ -5,9 +5,9 @@ This guide shows you how to use the `geozarr-toolkit` library to create and vali
 ## Installation
 
 ```bash
-pip install "geozarr-toolkit @ git+https://github.com/zarr-developers/geozarr-toolkit.git"
+pip install "geozarr-toolkit"
 # or with uv
-uv pip install "geozarr-toolkit @ git+https://github.com/zarr-developers/geozarr-toolkit.git"
+uv pip install "geozarr-toolkit"
 ```
 
 ## Quick Start

docs/index.md

@@ -30,7 +30,7 @@ See the [Getting Started guide](getting-started.md) for more details, or browse
 ## Installation
 
 ```bash
-pip install "geozarr-toolkit @ git+https://github.com/zarr-developers/geozarr-toolkit.git"
+pip install "geozarr-toolkit"
 ```
 
 ## Goals