playing with matrix

Author: darkmattercoder

.github/workflows/dockerimage.yml

@@ -8,7 +8,10 @@ jobs:
     strategy:
       matrix:
         env:
-          [[BLA: blubb, BLUBB: bla], [BLA: blablubb, BLUBB: blubb]]
+          - BLA: BLUBB
+            BLUBB: BLA
+          - BLA: BLA
+            BLUBB: BLUBB
           # [
           #   -5.13.1 --build-arg QT_VERSION_MAJOR=5 --build-arg QT_VERSION_MINOR=13 --build-arg QT_VERSION_PATCH=1 --build-arg QT_DOWNLOAD_BRANCH=official_releases --build-arg QT_TARBALL_NAMING_SCHEME=everywhere --build-arg CI_BUILD=2 --build-arg CORE_COUNT=2,
           #   -5.13.0 --build-arg QT_VERSION_MAJOR=5--build-arg QT_VERSION_MINOR=13--build-arg QT_VERSION_PATCH=0--build-arg QT_DOWNLOAD_BRANCH=official_releases--build-arg QT_TARBALL_NAMING_SCHEME=everywhere --build-arg CI_BUILD=2 --build-arg CORE_COUNT=2,