minor #7457 Update console.rst (rumaxr)

This PR was submitted for the 3.2 branch but it was merged into the 2.7 branch instead (closes #7457).

Discussion
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Update console.rst

In code example 'Configuring the Command' use single quote instead of double quotes to align with other code examples

Commits
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8f501a7 Update console.rst

Author: xabbuh

console.rst

@@ -57,7 +57,7 @@ method. Then you can optionally define a help message and the
 
             // the full command description shown when running the command with
             // the "--help" option
-            ->setHelp("This command allows you to create users...")
+            ->setHelp('This command allows you to create users...')
         ;
     }