[CDX-287] Docs - Change Items API Limit from 1k to 10k (#173)

Author: Alexey-Pavlov

README.md

@@ -35,7 +35,7 @@ items[1] = new ConstructorItem("10002");
 items[19] = new ConstructorItem("10003");
 
 // Add or replace items in the Products section
-constructor.createOrReplaceItems(items, "Products"); // (limit of 1,000 items)
+constructor.createOrReplaceItems(items, "Products"); // (limit of 10,000 items)
 ```
 
 To update existing item(s), you will need to provide an array of `ConstructorItem`(s) and their relevant `Autocomplete Section`.

constructorio-client/src/main/java/io/constructor/client/ConstructorIO.java

@@ -226,7 +226,7 @@ public boolean verify() throws ConstructorException {
     }
 
     /**
-     * Adds multiple items to your index whilst replacing existing ones (limit of 1,000 items)
+     * Adds multiple items to your index whilst replacing existing ones (limit of 10,000 items)
      *
      * @param items the items you want to add or replace.
      * @param section the section of the index that you're adding the items to.