chore: increment version number to 1.0.1 and polish the news

Author: eitsupi

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: polars
 Title: R Bindings for the 'polars' Rust Library
-Version: 1.0.0.9000
+Version: 1.0.1
 Authors@R: c(
     person("Tatsuya", "Shima", , "[email protected]", role = c("aut", "cre")),
     person("Etienne", "Bacher", , "[email protected]", role = "aut",

NEWS.md

@@ -1,10 +1,17 @@
 # NEWS
 
-## polars (development version)
+## polars 1.0.1
 
-### New features
+This is a small patch release that includes minor improvements discovered right after the 1.0.0 release.
 
-- `[[` can be used to extract a column from a polars DataFrame as a Series (#1442).
+### Performance
+
+- The performance of creating polars expressions has been significantly improved (#1444).
+
+### Other improvements
+
+- To improve interoperability with other `data.frame`-like objects,
+  the `[[` operator can now be used to extract a column from a polars DataFrame as a Series (#1442).
 
 ## polars 1.0.0