Add php doc blocks.

app/TransactionRules/Actions/SetSourceAccount.php

@@ -18,6 +18,7 @@
  * You should have received a copy of the GNU General Public License
  * along with Firefly III.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 declare(strict_types=1);
 
 namespace FireflyIII\TransactionRules\Actions;
@@ -35,15 +36,16 @@ use Log;
  */
 class SetSourceAccount implements ActionInterface
 {
+    /** @var RuleAction The rule action */
     private $action;
 
-    /** @var TransactionJournal */
+    /** @var TransactionJournal The journal */
     private $journal;
 
-    /** @var Account */
+    /** @var Account The new source account*/
     private $newSourceAccount;
 
-    /** @var AccountRepositoryInterface */
+    /** @var AccountRepositoryInterface Account repository */
     private $repository;
 
     /**
@@ -57,6 +59,8 @@ class SetSourceAccount implements ActionInterface
     }
 
     /**
+     * Set source account to X
+     *
      * @param TransactionJournal $journal
      *
      * @return bool