[fractal: 1/2] Slightly inaccurate flatpak build instructions

[Daniel Garcia Moreno <danigm src gnome org>]

commit b9071454fd13df91dc8f1999956ff6cf73b5e49e
Author: Crom (Thibaut CHARLES) <CromFr gmail com>
Date:   Wed Mar 6 18:43:41 2019 +0100

    Slightly inaccurate flatpak build instructions

 README.md                | 2 +-
 flatpak/flatpak-build.sh | 9 ---------
 2 files changed, 1 insertion(+), 10 deletions(-)
---
diff --git a/README.md b/README.md
index 6a316950..41e030b2 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ flatpak install --user flathub org.freedesktop.Sdk.Extension.rust-stable//18.08
 Then you go ahead and build Fractal.
 
 ```
-flatpak-builder --user --install fractal org.gnome.Fractal.json
+flatpak-builder --user --install fractal flatpak/org.gnome.Fractal.json
 ```
 
 ### GNU/Linux