[simple-scan] Update README.md to reflect move to gitlab.gnome.org

[Robert Ancell <rancell src gnome org>]

commit a26888048c705dbd9422a12252c77c093f68ebbf
Author: Robert Ancell <robert ancell canonical com>
Date:   Thu Dec 7 09:21:13 2017 +1300

    Update README.md to reflect move to gitlab.gnome.org

 README.md | 48 +++++-------------------------------------------
 1 file changed, 5 insertions(+), 43 deletions(-)
---
diff --git a/README.md b/README.md
index 2034383..79f724c 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,7 @@
 # SIMPLE SCAN
 
 This is the source code to "Simple Scan" a simple GNOME scanning application,
-using the sane scanning libraries.
-
-The Simple Scan homepage with further information is located at:
-https://launchpad.net/simple-scan
-
-
+using the [SANE](http://sane-project.org/) scanning libraries.
 
 ## BUILDING
 
@@ -17,7 +12,7 @@ $ sudo apt install bzr meson valac libgtk-3-dev libgusb-dev libcolord-dev libpac
 
 Get the source:
 ```
-$ bzr branch lp:simple-scan
+$ git clone https://gitlab.gnome.org/GNOME/simple-scan.git
 ```
 
 Build locally with:
@@ -52,46 +47,13 @@ When debugging hardware issues always check xsane and especially scanimage.
 ## CONTRIBUTING
 
 The preferred way to contribute code to Simple Scan is
-to create a merge request on Launchpad.
-
-* Creating a merge request on Launchpad involves creating an account:
-https://login.launchpad.net/+new_account
-* You need set up a SSH key with Launchpad:
-https://launchpad.net/~/+editsshkeys
-* How to configure bazaar (whoami) and create commits: 
-http://doc.bazaar.canonical.com/latest/en/mini-tutorial/
-* Push the changes to a personal repository on Launchpad:
-bzr push lp:~$USER/simple-scan/$BRANCHNAME
-where $USER is your Launchpad Id and $COMMENT is a newly created branch name.
-* Propose merging your new branch to the master branch on:
-https://code.launchpad.net/~
-
-If everything is set up correctly the following should work:
-```
-FEATURE="foobar"
-LAUNCHPADID="name"
-bzr branch lp:simple-scan simple-scan-$FEATURE && cd simple-scan-$FEATURE
-bzr add .
-bzr commit -m "add $FEATURE"
-bzr push lp:~$LAUNCHPADID/simple-scan/$FEATURE
-xdg-open "https://code.launchpad.net/~";
-```
-
-If this does not work for you, feel free to contact us
-via one of the channels listed below.
-
-
+to create a merge request on gitlab.gnome.org.
 
 ## CONTACT
 
 ### Websites
-* https://launchpad.net/simple-scan
-* https://bugs.launchpad.net/simple-scan
-* https://answers.launchpad.net/simple-scan
-
-### Mailing Lists
-* https://launchpad.net/~simple-scan-users
-* https://launchpad.net/~simple-scan-team
+* https://gitlab.gnome.org/GNOME/simple-scan
+* https://gitlab.gnome.org/GNOME/simple-scan/issues
 
 ### IRC
 * Freenode (irc.ubuntu.com): #simple-scan