docs: update alloc logs to document new behaviour.

website/content/docs/commands/alloc/logs.mdx

@@ -22,8 +22,8 @@ allocation is only running a single task, the task name can be omitted.
 Optionally, the `-job` option may be used in which case a random allocation from
 the given job will be chosen.
 
-Task name may also be specified using the `-task`  option rather than a command 
-argument. If task name is given with both an argument and the `-task` option, 
+Task name may also be specified using the `-task`  option rather than a command
+argument. If task name is given with both an argument and the `-task` option,
 preference is given to the `-task` option.
 
 When ACLs are enabled, this command requires a token with the `read-logs`,
@@ -35,6 +35,10 @@ When ACLs are enabled, this command requires a token with the `read-logs`,
 
 ## Logs Options
 
+- `-stdout`: Display stdout logs. This is used as the default value in all
+  commands expect when using the `-f` flag where both stdout and stderr are
+  used as default.
+
 - `-stderr`: Display stderr logs.
 
 - `-verbose`: Display verbose output.
@@ -45,7 +49,8 @@ When ACLs are enabled, this command requires a token with the `read-logs`,
 - `-task`: Specify the task to view the logs.
 
 - `-f`: Causes the output to not stop when the end of the logs are reached, but
-  rather to wait for additional output.
+  rather to wait for additional output. When supplied with no other flags except
+  optionally `-job` and `-task`, both stdout and stderr logs will be followed.
 
 - `-tail`: Show the logs contents with offsets relative to the end of the logs.
   If no offset is given, -n is defaulted to 10.