Fix some old Alexpux URLs

they redirect to the new repo, so replace the links

web/wiki/Devtopics.md

@@ -52,7 +52,7 @@ Links:
 - https://github.com/Alexpux/Cygwin/commit/4f756d6cc28179319ceccce01dd698de3f22c212
 - https://sourceforge.net/p/mingw-w64/mailman/mingw-w64-public/thread/[email protected]/
 - http://sourceware.org/ml/cygwin/2014-12/msg00084.html
-- https://github.com/Alexpux/MSYS2-packages/issues/83
+- https://github.com/msys2/MSYS2-packages/issues/83
 
 
 Connect with upstreams

web/wiki/Home.md

@@ -8,7 +8,7 @@
 - [Re-installing from scratch](MSYS2-reinstallation.md) - in case of unrecoverable problems
 - [Creating packages](Creating-Packages.md) - how packages are built and how to make new ones
 - [MSYS2 vs. Cygwin](How-does-MSYS2-differ-from-Cygwin.md) - differences and similarities
-- [MSYS2 on Wine](https://github.com/TeaCI/tea-ci/wiki/Msys2-on-Wine) - how to install and use MSYS2 under Wine [sadly [broken](https://github.com/Alexpux/MSYS2-packages/issues/682) with current version of MSYS2 and no-one is actively working on a fix as far as we know]
+- [MSYS2 on Wine](https://github.com/TeaCI/tea-ci/wiki/Msys2-on-Wine) - how to install and use MSYS2 under Wine [sadly [broken](https://github.com/msys2/MSYS2-packages/issues/682) with current version of MSYS2 and no-one is actively working on a fix as far as we know]
 - [Porting for MSYS2 or MinGW-w64](Porting.md) - useful resources and common issues
 - [Launchers](Launchers.md) - various ways to launch MSYS2 shells
 - [Distributing software without pacman](Distributing.md) - how to bundle your software built using MSYS2, including all required dependencies, to non-MSYS2-users

web/wiki/Launchers.md

@@ -6,29 +6,29 @@ summary: How to start MSYS2?
 
 You should *not* launch sh.exe directly as that doesn't start a login shell or set the correct environment variables for the type of shell that you want to use. Instead, your best choices are:
 
-[**msys2_shell.cmd**](https://github.com/Alexpux/MSYS2-packages/blob/master/filesystem/msys2_shell.cmd), the improved multi-purpose batch file from the [`filesystem` package](https://github.com/Alexpux/MSYS2-packages/tree/master/filesystem).  Run `msys2_shell.cmd --help` for usage.
+[**msys2_shell.cmd**](https://github.com/msys2/MSYS2-packages/blob/master/filesystem/msys2_shell.cmd), the improved multi-purpose batch file from the [`filesystem` package](https://github.com/msys2/MSYS2-packages/tree/master/filesystem).  Run `msys2_shell.cmd --help` for usage.
 
-**msys2.exe**, **mingw64.exe**, **mingw32.exe**, the new pinnable launchers from the `msys2-launcher` package from @Elieux. [GitHub](https://github.com/elieux/msys2-launcher), [discussion](https://github.com/Alexpux/MSYS2-packages/issues/370#issuecomment-152021427), [discussion](https://sourceforge.net/p/msys2/mailman/message/34599465/)
+**msys2.exe**, **mingw64.exe**, **mingw32.exe**, the new pinnable launchers from the `msys2-launcher` package from @Elieux. [GitHub](https://github.com/elieux/msys2-launcher), [discussion](https://github.com/msys2/MSYS2-packages/issues/370#issuecomment-152021427), [discussion](https://sourceforge.net/p/msys2/mailman/message/34599465/)
 
 A nice explanation how to [set up ConEmu](https://superuser.com/a/1297072) to run MSYS2 inside it by jstine.
 
 Configuration for [an MSYS2 shell in Visual Studio Code](https://stackoverflow.com/a/48016561).
 
-**msys2_env.bat** from @DavidEGrayson. [Gist](https://gist.github.com/DavidEGrayson/2e5923b9c0d8acb3f7a7), [discussion](https://github.com/Alexpux/MSYS2-packages/issues/370#issuecomment-151658726)
+**msys2_env.bat** from @DavidEGrayson. [Gist](https://gist.github.com/DavidEGrayson/2e5923b9c0d8acb3f7a7), [discussion](https://github.com/msys2/MSYS2-packages/issues/370#issuecomment-151658726)
 
 **msys2.cmd**, **mingw64.cmd**, **mingw32.cmd** from @Elieux. [Gist](https://gist.github.com/elieux/dd6d0c15cc0ae503f830)
 
 **smart_msys** from @jhasse. [GitHub](https://github.com/jhasse/smart_cmd), [discussion](https://sourceforge.net/p/msys2/mailman/message/34639135/)
 
 **MSYS2 here**, **MINGW64 here** and **MINGW32 here** Explorer context menu items from @Elieux. [Gist](https://gist.github.com/elieux/ef044468d067d68040c7)
 
-**msystem.bat** and cmd/clink integration in the `filesystem-cmd` package from @userzimmermann. [PR](https://github.com/Alexpux/MSYS2-packages/pull/350), [commits](https://github.com/userzimmermann/MSYS2-packages/commits/ed54eccce9716b9471c63bc1738ebbab637ed552)
+**msystem.bat** and cmd/clink integration in the `filesystem-cmd` package from @userzimmermann. [PR](https://github.com/msys2/MSYS2-packages/pull/350), [commits](https://github.com/userzimmermann/MSYS2-packages/commits/ed54eccce9716b9471c63bc1738ebbab637ed552)
 
 **git-bash.exe** and **start-ssh-agent.cmd** as part of the Git for Windows project from @dscho. [GitHub](https://github.com/git-for-windows/MINGW-packages/blob/main/mingw-w64-git/git-wrapper.c), [GitHub](https://github.com/git-for-windows/MINGW-packages/tree/master/mingw-w64-git)
 
 **Open MSYS2 here** from @magthe, with contributions from @sushovan-dw and @ryanpfeeley. [Gist+discussion](https://gist.github.com/magthe/a60293fe395af7245a9e)
 
-[**msys2_shell.bat**](https://github.com/Alexpux/MSYS2-packages/blob/b827a678b1793571968a4d27f72f981d99c305ef/filesystem/msys2_shell.bat), [**mingw64_shell.bat**](https://github.com/Alexpux/MSYS2-packages/blob/b827a678b1793571968a4d27f72f981d99c305ef/filesystem/mingw64_shell.bat) and [**mingw32_shell.bat**](https://github.com/Alexpux/MSYS2-packages/blob/b827a678b1793571968a4d27f72f981d99c305ef/filesystem/mingw32_shell.bat), the old-school batch files from [old versions of the `filesystem` package](https://github.com/Alexpux/MSYS2-packages/tree/b827a678b1793571968a4d27f72f981d99c305ef/filesystem).
+[**msys2_shell.bat**](https://github.com/msys2/MSYS2-packages/blob/b827a678b1793571968a4d27f72f981d99c305ef/filesystem/msys2_shell.bat), [**mingw64_shell.bat**](https://github.com/msys2/MSYS2-packages/blob/b827a678b1793571968a4d27f72f981d99c305ef/filesystem/mingw64_shell.bat) and [**mingw32_shell.bat**](https://github.com/msys2/MSYS2-packages/blob/b827a678b1793571968a4d27f72f981d99c305ef/filesystem/mingw32_shell.bat), the old-school batch files from [old versions of the `filesystem` package](https://github.com/msys2/MSYS2-packages/tree/b827a678b1793571968a4d27f72f981d99c305ef/filesystem).
 
 ### The idea