Add master.conf pillar_safe_render_error option

Change-Id: I3ddfb01dd785f559e4bbf197bc164b8d0389a4f1
diff --git a/README.rst b/README.rst
index c4a41f8..1e42a95 100644
--- a/README.rst
+++ b/README.rst
@@ -476,6 +476,21 @@
    :language: yaml
 
 
+Common salt config options
+--------------------------
+
+Pass pillar render error to minion log.
+
+.. Note: When set to `False` this option is great for debuging. However it is not recomended for
+         any production environment as it may contain templating data as passwords, etc...,
+         that minion should not have.
+
+.. code-block:: yaml
+
+    salt:
+      master:
+        pillar_safe_render_error: False
+
 Salt minion
 -----------