Update tsort entries under the doc

Author: hsbt

doc/maintainers.md

@@ -269,12 +269,6 @@ consensus on ruby-core/ruby-dev.
 * https://github.com/ruby/tmpdir
 * https://rubygems.org/gems/tmpdir
 
-#### lib/tsort.rb
-
-* Tanaka Akira ([akr])
-* https://github.com/ruby/tsort
-* https://rubygems.org/gems/tsort
-
 #### lib/un.rb
 
 * WATANABE Hirofumi ([eban])
@@ -628,6 +622,12 @@ It may needs to make consensus on ruby-core/ruby-dev before making major changes
 * https://github.com/ruby/repl_type_completor
 * https://rubygems.org/gems/repl_type_completor
 
+#### tsort
+
+* Tanaka Akira ([akr])
+* https://github.com/ruby/tsort
+* https://rubygems.org/gems/tsort
+
 ## Platform Maintainers
 
 ### mswin64 (Microsoft Windows)

doc/standard_library.md

@@ -58,7 +58,6 @@ of each.
 - Time ([GitHub][time]): Extends the Time class with methods for parsing and conversion
 - Timeout ([GitHub][timeout]): Auto-terminate potentially long-running operations in Ruby
 - TmpDir ([GitHub][tmpdir]): Extends the Dir class to manage the OS temporary file path
-- TSort ([GitHub][tsort]): Topological sorting using Tarjan's algorithm
 - UN ([GitHub][un]): Utilities to replace common UNIX commands
 - URI ([GitHub][uri]): A Ruby module providing support for Uniform Resource Identifiers
 - YAML ([GitHub][yaml]): The Ruby client library for the Psych YAML implementation
@@ -126,6 +125,7 @@ of each.
 - [reline][reline-doc] ([GitHub][reline]): GNU Readline and Editline in a pure Ruby implementation
 - [readline]: Wrapper for the Readline extension and Reline
 - [fiddle]: A libffi wrapper for Ruby
+- [tsort]: Topological sorting using Tarjan's algorithm
 
 ## Tools