README.md in red-arrow-dataset-11.0.0 vs README.md in red-arrow-dataset-12.0.0

@@ -23,12 +23,12 @@
 
 [Apache Arrow Dataset](https://arrow.apache.org/) is one of Apache Arrow components to read and write semantic datasets stored in different locations and formats.
 
 [GObject Introspection](https://wiki.gnome.org/action/show/Projects/GObjectIntrospection) is a middleware for language bindings of C library. GObject Introspection can generate language bindings automatically at runtime.
 
-Red Arrow Dataset uses [Apache Arrow Dataset GLib](https://github.com/apache/arrow/tree/master/c_glib) and [gobject-introspection gem](https://rubygems.org/gems/gobject-introspection) to generate Ruby bindings of Apache Arrow Dataset.
+Red Arrow Dataset uses [Apache Arrow Dataset GLib](https://github.com/apache/arrow/tree/main/c_glib) and [gobject-introspection gem](https://rubygems.org/gems/gobject-introspection) to generate Ruby bindings of Apache Arrow Dataset.
 
-Apache Arrow Dataset GLib is a C wrapper for [Apache Arrow Dataset C++](https://github.com/apache/arrow/tree/master/cpp). GObject Introspection can't use Apache Arrow Dataset C++ directly. Apache Arrow Dataset GLib is a bridge between Apache Arrow Dataset C++ and GObject Introspection.
+Apache Arrow Dataset GLib is a C wrapper for [Apache Arrow Dataset C++](https://github.com/apache/arrow/tree/main/cpp). GObject Introspection can't use Apache Arrow Dataset C++ directly. Apache Arrow Dataset GLib is a bridge between Apache Arrow Dataset C++ and GObject Introspection.
 
 gobject-introspection gem is a Ruby bindings of GObject Introspection. Red Arrow Dataset uses GObject Introspection via gobject-introspection gem.
 
 ## Install