docs: fix links to the meson repos

docs/markdown/Getting-meson.md

@@ -20,9 +20,9 @@ Depending on your platform and backend you wish to use, you might need
 the [Ninja executable]. Again, use your distro-provided version if
 possible. Otherwise download it from Ninja project's web site.
 
-  [Github release page]: https://github.com/jpakkane/meson/releases
+  [Github release page]: https://github.com/mesonbuild/meson/releases
   [Python Package Index]: https://pypi.python.org/pypi/meson/
-  [Git]: https://github.com/jpakkane/meson
+  [Git]: https://github.com/mesonbuild/meson
   [Python's home page]: https://www.python.org/downloads/
   [Ninja executable]: https://ninja-build.org/