[Initiatives.wiki] Update DevOps with Flatpak

[Jordan Petridis <jpetridis src gnome org>]

commit c92292e197d3a00609f1adf3070444aa649c542a
Author: Jordan Petridis <jpetridis gnome org>
Date:   Mon Dec 2 15:33:43 2019 +0000

    Update DevOps with Flatpak

 DevOps-with-Flatpak.md | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/DevOps-with-Flatpak.md b/DevOps-with-Flatpak.md
index 5d57039..9825359 100644
--- a/DevOps-with-Flatpak.md
+++ b/DevOps-with-Flatpak.md
@@ -19,6 +19,7 @@ flatpak:
         MESON_ARGS: "-Dprofile=Devel"
         FLATPAK_MODULE: "nautilus"
         APP_ID: "org.gnome.NautilusDevel"
+        RUNTIME_REPO: "https://nightly.gnome.org/gnome-nightly.flatpakrepo";
         BUNDLE: "nautilus-dev.flatpak"
     extends: .flatpak
 ```
@@ -68,6 +69,7 @@ flatpak:
         MESON_ARGS: "-Dprofile=Devel"
         FLATPAK_MODULE: "nautilus"
         APP_ID: "org.gnome.NautilusDevel"
+        RUNTIME_REPO: "https://nightly.gnome.org/gnome-nightly.flatpakrepo";
         BUNDLE: "nautilus-dev.flatpak"
     extends: .flatpak