Update python package description

Author: Nicoretti

Diff for: Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ka3005p"
-version = "0.5.0"
+version = "0.5.1"
 authors = [
     "Nicola Coretti <[email protected]>", 
     "Daniel Hartig <[email protected]>",

Diff for: pyproject.toml

@@ -5,7 +5,7 @@ build-backend = "maturin"
 [project]
 name = "ka3005p"
 requires-python = ">=3.8"
-description = "TBD"
+description = "Python interface to control Korad, Tenma, RS, Velleman, Stamos, and other compatible power supplies via their serial interface."
 readme = "python/README.md"
 maintainers = [
     { name = "Nicola Coretti", email ="[email protected]" }