chore: add LICENSE file and update README with license badge (#12)

Author: zurfjereluhmie

LICENSE

@@ -0,0 +1,28 @@
+BSD 3-Clause License
+
+Copyright (c) 2026-present, Jérémie Zurflüh
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

@@ -4,7 +4,9 @@
 
 ---
 
+[![License](https://img.shields.io/badge/License-BSD_3--Clause-blue.svg)](https://opensource.org/licenses/BSD-3-Clause)
 [![CI](https://github.com/zurfjereluhmie/evalwire/actions/workflows/ci.yml/badge.svg)](https://github.com/zurfjereluhmie/evalwire/actions/workflows/ci.yml)
+![PyPI - Version](https://img.shields.io/pypi/v/evalwire)
 
 ## What it does
 
@@ -74,13 +76,13 @@ async def task(example) -> list[str]:
 
 ## CLI reference
 
-| Command | Description |
-|---------|-------------|
-| `evalwire upload --csv PATH` | Upload CSV testset to Phoenix |
-| `evalwire run --experiments DIR` | Discover and run all experiments |
-| `evalwire run --name NAME` | Run a single named experiment |
-| `evalwire run --dry-run N` | Run N examples without recording results |
-| `evalwire run --concurrency N` | Run N experiments in parallel |
+| Command                          | Description                              |
+| -------------------------------- | ---------------------------------------- |
+| `evalwire upload --csv PATH`     | Upload CSV testset to Phoenix            |
+| `evalwire run --experiments DIR` | Discover and run all experiments         |
+| `evalwire run --name NAME`       | Run a single named experiment            |
+| `evalwire run --dry-run N`       | Run N examples without recording results |
+| `evalwire run --concurrency N`   | Run N experiments in parallel            |
 
 ---
 

pyproject.toml

@@ -7,6 +7,7 @@ name            = "evalwire"
 version         = "0.2.2"
 description     = "Systematic evaluation of LangGraph nodes using Arize Phoenix experiments."
 readme          = "README.md"
+license         = "BSD-3-Clause"
 authors         = [{ name = "evalwire contributors" }]
 requires-python = ">=3.10"
 dependencies = [