add cleanup limit argument

README.md

@@ -99,11 +99,13 @@ php src/cli/document/crawl.php
 
 ##### Clean
 
+Make index optimization, apply new configuration rules
+
 ```
-php src/cli/document/clean.php
+php src/cli/document/clean.php [limit]
 ```
 
-* make index optimization
+* `limit` - integer, documents quantity per queue
 
 ##### Search
 

src/cli/document/clean.php

@@ -79,7 +79,15 @@ foreach ($config->cli->document->crawl->skip->stripos->url as $condition)
     $documents = 0;
     $snaps = 0;
 
-    foreach($index->search(sprintf('@url "%s"', $condition))->get() as $document)
+    foreach(
+        $index->search(
+            sprintf(
+                '@url "%s"',
+                $condition
+            )
+        )->limit(
+            isset($argv[1]) ? (int) $argv[1] : 10
+        )->get() as $document)
     {
         // Delete found document by it ID
         $result = $index->deleteDocument(