add license

Author: willmcgugan

pyproject.toml

@@ -1,12 +1,13 @@
 [project]
 name = "textual-diff-view"
-version = "0.1.4"
+version = "0.1.5"
 description = "Beautiful Diff view widget for Textual applications"
 homepage = "https://github.com/batrachianai/textual-diff-view"
 repository = "https://github.com/batrachianai/textual-diff-view"
 documentation = "https://github.com/batrachianai/textual-diff-view"
 
 readme = "README.md"
+license = { file = "LICENSE" }
 authors = [
     { name = "Will McGugan", email = "willmcgugan@gmail.com" }
 ]