Merge pull request #3212 from anagainaru/ondemand-doc

Update documentation with correct StepDistributionMode values

docs/user_guide/source/engines/sst.rst

@@ -267,15 +267,15 @@ eager data sending of all data from each writer to all readers.
 Currently value is interpreted by only by the SST Reader engine.
 
 
-17. ``StepDistributionMode``: Default **"StepsAllToAll"**.  This value
+17. ``StepDistributionMode``: Default **"AllToAll"**.  This value
 controls how steps are distributed, particularly when there are
-multiple readers.  By default, the value is **StepsAllToAll*, which
+multiple readers.  By default, the value is **"AllToAll"**, which
 means that all timesteps are to be delivered to all readers (subject
 to discard rules, etc.).  In other distribution modes, this is not the
-case.  For example, in **"StepsRoundRobin"**, each step is delivered
+case.  For example, in **"RoundRobin"**, each step is delivered
 only to a single reader, determined in a round-robin fashion based
 upon the number or readers who have opened the stream at the time the
-step is submitted.  In **"StepsOnDemand"** each step is delivered to a
+step is submitted.  In **"OnDemand"** each step is delivered to a
 single reader, but only upon request (with a request being initiated
 by the reader doing BeginStep()).  Normal reader-side rules (like
 BeginStep timeouts) and writer-side rules (like queue limit behavior) apply.