Update README examples for new image version 15.12

README

@@ -7,16 +7,16 @@ available from: http://cgit.collabora.com/git/singularity/tools/lqa.git/
 For lqa usage see the readme in the lqa source tree, minimal examples
 for Apertis below:
 
-To submit e.g. a minimal boot test to minnowboard (daily 15.09) targets use:
+To submit e.g. a minimal boot test to minnowboard (daily 15.12) targets use:
 
     lqa submit -g templates/profiles.yaml \
-      -p apertis-15.09-daily-minnowboard-max-target \
+      -p apertis-15.12-daily-minnowboard-max-target \
       -t image_date:150624-001801 \
       -t image_version:14.00.25 \
       templates/minimal-tpl.json
 
 The image_date variable specifies the image data of the image to use, see
-https://images.apertis.org/daily/15.09/ for the list of
+https://images.apertis.org/daily/15.12/ for the list of
 available images.
 
 The image_version variable is also part of the image's filename.
@@ -29,7 +29,7 @@ can for example be used to change the git-repo value to non-standard repository
 to test tests before merging them for example:
 
     lqa submit -g templates/profiles.yaml \
-      -p apertis-15.09-daily-minnowboard-max-target \
+      -p apertis-15.12-daily-minnowboard-max-target \
       -t image_date:150624-001801 \
       -t image_version:14.00.25 \
       -t git-repo:https://...@git.apertis.org/git/users/me/apertis-tests.git \