Merge branch 'staging'

Signed-off-by: Siwara Sadikow <siwara.sadikow@iese.fraunhofer.de>
diff --git a/Jenkinsfile b/Jenkinsfile
index b9517ce..110ff49 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -87,7 +87,7 @@
         }
       }
       steps {
-        sh 'cp -Rvf hugo/public/* www/'
+        sh 'rm -rf www/* && cp -Rvf hugo/public/* www/'
         dir('www') {
             sshagent(['git.eclipse.org-bot-ssh']) {
                 sh '''
@@ -108,4 +108,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/content/use case/images/BigDataAnalytics.jpg b/content/use case/images/BigDataAnalytics.jpg
index c454d7a..a684fe3 100644
--- a/content/use case/images/BigDataAnalytics.jpg
+++ b/content/use case/images/BigDataAnalytics.jpg
Binary files differ
diff --git a/content/use case/images/ConnectingITandDevices.jpg b/content/use case/images/ConnectingITandDevices.jpg
index 3e07f05..9455d97 100644
--- a/content/use case/images/ConnectingITandDevices.jpg
+++ b/content/use case/images/ConnectingITandDevices.jpg
Binary files differ