Update package description to better reflect project purpose

Modify pyproject.toml to provide a more concise and descriptive explanation of the xlviews package, emphasizing its core functionality of working with DataFrames in Excel

Author: daizutabi

pyproject.toml

@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "xlviews"
 version = "0.3.1"
-description = "A Python package for writing xlsx files."
+description = "DataFrames for Excel"
 readme = "README.md"
 license = { file = "LICENSE" }
 authors = [{ name = "daizutabi", email = "daizutabi@gmail.com" }]