Add note for editing lease for compute offering and lowest possible value for scheduler interval

Author: sudo87

source/adminguide/service_offerings.rst

@@ -411,8 +411,10 @@ To create a new compute offering:
       These lease settings are defined in the Compute Offering and are automatically applied to any Instance created using it.
 
       .. note:: The global configuration ``instance.lease.enabled`` should be configured as true to create compute offering with lease.
+      
+      .. note:: Lease duration or expiryaction can't be updated for compute offering.
 
-         ``instance.lease.enabled``: Indicates whether Instance Lease feature is enabled or not. Default is **false**
+      ``instance.lease.enabled``: Indicates whether Instance Lease feature is enabled or not. Default is **false**
          For more information, see `“Setting Global Configuration Parameters”
          <../installguide/configuration.html#setting-global-configuration-parameters>`_.
 

source/adminguide/virtual_machines.rst

@@ -999,6 +999,8 @@ instance.lease.eventscheduler.interval   Background task interval in seconds tha
 instance.lease.expiryevent.daysbefore    Denotes number of days (N) in advance expiry events are generated for instance about to expire. Default: 7 days
 ======================================= ========================
 
+.. note:: it is recommended to configure the lowest possible value (in secs) for **instance.lease.scheduler.interval**, so that lease expiry action is taken as soon as lease is expired.
+
 
 **Lease Parameters**