[gnome-builder] doc: update nightly installation URL

[Christian Hergert <chergert src gnome org>]

commit d4402a3d624b462c52b269f342f1c225f49bb986
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jul 22 10:42:51 2022 -0700

    doc: update nightly installation URL

 doc/help/installation.rst | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/doc/help/installation.rst b/doc/help/installation.rst
index 73c8ac6e6..d29adc22a 100644
--- a/doc/help/installation.rst
+++ b/doc/help/installation.rst
@@ -2,7 +2,7 @@
 .. _Installation:
 .. _Flatpak: https://flatpak.org
 .. _Stable: https://flathub.org/repo/appstream/org.gnome.Builder.flatpakref
-.. _Nightly: https://nightly.gnome.org/repo/appstream/org.gnome.Builder.flatpakref
+.. _Nightly: https://nightly.gnome.org/repo/appstream/org.gnome.Builder.Devel.flatpakref
 .. _Software: https://wiki.gnome.org/Apps/Software
 .. _GNOME: https://gnome.org/
 .. _JHBuild: https://wiki.gnome.org/Newcomers/BuildGnome
@@ -44,8 +44,8 @@ You can also use the command line to install Builder:
 
 .. code-block:: sh
 
-   $ flatpak install --user --from https://nightly.gnome.org/repo/appstream/org.gnome.Builder.flatpakref
-   $ flatpak run org.gnome.Builder
+   $ flatpak install --user --from 
https://nightly.gnome.org/repo/appstream/org.gnome.Builder.Devel.flatpakref
+   $ flatpak run org.gnome.Builder.Devel
 
 .. note:: Nightly builds are built with tracing enabled. The tracing is fairly lightweight, but it includes 
a great deal of more debugging information.