Update ipsec-road.rst (#54)

source/manual/how-tos/ipsec-road.rst

@@ -238,6 +238,13 @@ And Apply changes:
 
 -----------------------------
 
+.. Note::
+
+   If you already had IPsec enabled and added Road Warrior setup, it's important to 
+   restart the whole service via services widget in the upper right corner of IPSec pages
+   or via **System->Diagnostics->Services->Strogswan** since applying configuration only
+   reloads it, but a restart also loads the required modules of strongswan.
+
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 Step 4 - Add IPsec Users
 ------------------------