Resizing use case images

Change-Id: I5d899ee90f57711e39d4c363f27f875eb82ce39e
Signed-off-by: Susan Iwai <susan.iwai@eclipse.org>
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