Install the PNG file as well. PR4780.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142125 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/tutorial/Makefile b/docs/tutorial/Makefile
index 9082ad4..fdf1bb6 100644
--- a/docs/tutorial/Makefile
+++ b/docs/tutorial/Makefile
@@ -11,6 +11,7 @@
 include $(LEVEL)/Makefile.common
 
 HTML       := $(wildcard $(PROJ_SRC_DIR)/*.html)
+PNG        := $(wildcard $(PROJ_SRC_DIR)/*.png)
 EXTRA_DIST := $(HTML) index.html
 HTML_DIR   := $(DESTDIR)$(PROJ_docsdir)/html/tutorial
 
@@ -18,6 +19,7 @@
 	$(Echo) Installing HTML Tutorial Documentation
 	$(Verb) $(MKDIR) $(HTML_DIR)
 	$(Verb) $(DataInstall) $(HTML) $(HTML_DIR)
+	$(Verb) $(DataInstall) $(PNG) $(HTML_DIR)
 	$(Verb) $(DataInstall) $(PROJ_SRC_DIR)/index.html $(HTML_DIR)
 
 uninstall-local::