add hemdall install

Change-Id: I153cb95fd78eeca382814ddd28b738c65a2bb0bf
diff --git a/_samsung/samsunggalaxytab2101wifi.markdown b/_samsung/samsunggalaxytab2101wifi.markdown
index 9a35d33..91ddc46 100644
--- a/_samsung/samsunggalaxytab2101wifi.markdown
+++ b/_samsung/samsunggalaxytab2101wifi.markdown
@@ -25,4 +25,6 @@
 
 {% include odininstall.html %}
 
+{% include heimdallinstall.html %}
+
 {% include ddinstall.html %}