add hemdall install

Change-Id: I153cb95fd78eeca382814ddd28b738c65a2bb0bf
diff --git a/_samsung/samsunggalaxycoreprime3g.markdown b/_samsung/samsunggalaxycoreprime3g.markdown
index 33a53f9..152a614 100644
--- a/_samsung/samsunggalaxycoreprime3g.markdown
+++ b/_samsung/samsunggalaxycoreprime3g.markdown
@@ -21,4 +21,6 @@
 
 {% include odininstall.html %}
 
+{% include heimdallinstall.html %}
+
 {% include ddinstall.html %}