fix: update LICENSE and README to include third-party licenses for Matplotlib and Seaborn; add colorblind.mplstyle file

Author: c0rychu

LICENSE

@@ -26,7 +26,8 @@ SOFTWARE.
 
 ### Third-Party Licenses
 
-This project includes or adapts files from the Matplotlib project
-(https://matplotlib.org/), licensed under the Matplotlib License Agreement
-(BSD-compatible).  
-Copyright (c) 2012– Matplotlib Development Team.
+This project includes or adapts files from:
+- **Matplotlib** (BSD-compatible license)
+  Copyright (c) 2012– Matplotlib Development Team
+- **Seaborn** (BSD 3-Clause License)
+  Copyright (c) 2012–2023, Michael L. Waskom

README.md

@@ -64,5 +64,13 @@ Feel free to start from either example when styling your own figures.
 - Coming soon
 
 ## License
-
+This project is licensed under the
 [MIT](LICENSE)
+license.
+
+### Third-Party Licenses
+This project includes or adapts files from:
+- [**Matplotlib**](https://github.com/matplotlib/matplotlib) (BSD-compatible license)
+  Copyright (c) 2012– Matplotlib Development Team
+- [**Seaborn**](https://github.com/mwaskom/seaborn) (BSD 3-Clause License)
+  Copyright (c) 2012–2023, Michael L. Waskom

src/physics_plot/colors/colorblind.mplstyle

@@ -0,0 +1,7 @@
+# Taken from https://github.com/mwaskom/seaborn/blob/v0.13/seaborn/palettes.py
+# 
+# This style file is adapted from Seaborn (https://github.com/mwaskom/seaborn)
+# Copyright (c) 2012–2023, Michael L. Waskom
+# Licensed under the BSD 3-Clause License.
+
+axes.prop_cycle: cycler("color", ["#0173B2", "#DE8F05", "#029E73", "#D55E00", "#CC78BC", "#CA9161", "#FBAFE4", "#949494", "#ECE133", "#56B4E9"])