Documentation/accounting: Fix typo in taskstats-struct.rst

Corrected a typo in the 'taskstats-struct.rst' documentation. The macro
name 'TAKSTATS_VERSION' was mistakenly mentioned instead of the correct
'TASKSTATS_VERSION'. The corrected line now references the proper macro
'TASKSTATS_VERSION', defined in '<linux/taskstats.h>'.

Signed-off-by: Sarveshwaar SS <[e-mail]>
Signed-off-by: Jonathan Corbet <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/accounting/taskstats-struct.rst

···
 1) Common and basic accounting fields::
 
 	/* The version number of this struct. This field is always set to
-	 * TAKSTATS_VERSION, which is defined in <linux/taskstats.h>.
+	 * TASKSTATS_VERSION, which is defined in <linux/taskstats.h>.
 	 * Each time the struct is changed, the value should be incremented.
 	 */
 	__u16	version;