Fix default values from Configuring.md and Scaling.md

The "new-workflow-poll-rate" and "max-workflow-launch-count" entries mention the wrong default value.

docs/Configuring.md

@@ -134,18 +134,18 @@ system.max-concurrent-workflows = 5000
 
 **New Workflow Poll Rate**
 
-Cromwell will look for new workflows to start on a regular interval, configured as a number of seconds. You can change the polling rate from the default `2` seconds by editing the value:
+Cromwell will look for new workflows to start on a regular interval, configured as a number of seconds. You can change the polling rate from the default `20` seconds by editing the value:
 
 ```hocon
-system.new-workflow-poll-rate = 2
+system.new-workflow-poll-rate = 20
 ```
 
 **Max Workflow Launch Count**
 
-On every poll, Cromwell will take at limited number of new submissions, provided there are new workflows to launch and the `system.max-concurrent-workflows` number has not been reached. While the default is to launch up to `50` workflows, you can override this by setting:
+On every poll, Cromwell will take at limited number of new submissions, provided there are new workflows to launch and the `system.max-concurrent-workflows` number has not been reached. While the default is to launch up to `1` workflow, you can override this by setting:
 
 ```hocon
-system.max-workflow-launch-count = 50
+system.max-workflow-launch-count = 1
 ```
 
 ***Abort configuration***

docs/Scaling.md

@@ -38,7 +38,7 @@ system {
 
   # Cromwell will launch up to N submitted workflows at a time, regardless of how many open workflow slots exist
   # Set this to 0 for a non-runner.
-  max-workflow-launch-count = 50
+  max-workflow-launch-count = 1
 
   # The maximum number of workflows to run concurrently.
   # Set this to 0 for a non-runner.