Updated ItemHeaderView docs to show the proper library that is being …

…used for the component

src/components/ItemHeaderView/ItemHeaderView.md

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+The ItemHeader displays item metadata for items of selected queues and allows for filtering by field and opening an item by clicking. Items are passed in as a required parameter. It is to be used with the [ItemTableAppBar](/#/Components/ItemTableAppBar).
+
+It is based on [react-table](https://react-table.tanstack.com/).
+```jsx
+import React, { useState, useEffect } from "react";
+
+
+const [itemData, setItemData] = useState([]);
+
+const testItems = [{"queue": "ce", "number": 9, "lastUpdated": "09-11-20 12:14 PM", "isLocked": false, "userEmail": "lslusher@purdue.edu", "userName": "Slusher, Laura M", "userAlias": "lslusher", "assignedTo": "bekuma", "subject": "RE: New laptop", "status": "waiting on reply/time to call", "priority": "deploy", "department": "che", "building": "frny", "dateReceived": "2020-03-12T18:07:27+0000"}, {"queue": "ce", "number": 42, "lastUpdated": "09-11-20 12:14 PM", "isLocked": false, "userEmail": "feng293@purdue.edu", "userName": "", "userAlias": "feng293", "assignedTo": "schmid22", "subject": "Upgrade system and Abaqus", "status": "", "priority": "", "department": "", "building": "", "dateReceived": "2020-05-14T10:21:32-0400"}, {"queue": "ce", "number": 51, "lastUpdated": "09-11-20 12:14 PM", "isLocked": false, "userEmail": "jclauso@purdue.edu", "userName": "", "userAlias": "jclauso", "assignedTo": "schmid22", "subject": "ECN privileges for future grad student", "status": "Waiting for reply", "priority": "", "department": "", "building": "", "dateReceived": "2020-05-14T15:03:07-0400"}];
+
+
+useEffect(() => {
+
+		setItemData(testItems)
+
+}, []);
+
+<ItemHeaderView data={itemData} />
+```
+```jsx static
+<ItemHeaderView data={someArray} />
+```