add hemdall install

Change-Id: I153cb95fd78eeca382814ddd28b738c65a2bb0bf
diff --git a/_samsung/samsunggalaxytabs6qcomwifi.markdown b/_samsung/samsunggalaxytabs6qcomwifi.markdown
index 6144bc7..e119706 100644
--- a/_samsung/samsunggalaxytabs6qcomwifi.markdown
+++ b/_samsung/samsunggalaxytabs6qcomwifi.markdown
@@ -24,4 +24,6 @@
 
 {% include odininstall.html %}
 
+{% include heimdallinstall.html %}
+
 {% include ddinstall.html %}