Update the README.md because configureCell was added to dataSource init

Author: cozzin

README.md

@@ -49,7 +49,7 @@ These are precisely the use cases that RxDataSources helps solve.
 With RxDataSources, it is super easy to just write
 
 ```swift
-let dataSource = RxTableViewSectionedReloadDataSource<SectionModel<String, Int>>()
+let dataSource = RxTableViewSectionedReloadDataSource<SectionModel<String, Int>>(configureCell: configureCell)
 Observable.just([SectionModel(model: "title", items: [1, 2, 3])])
     .bind(to: tableView.rx.items(dataSource: dataSource))
     .disposed(by: disposeBag)
@@ -77,38 +77,51 @@ struct SectionOfCustomData {
 }
 extension SectionOfCustomData: SectionModelType {
   typealias Item = CustomData
-  
+
    init(original: SectionOfCustomData, items: [Item]) {
     self = original
     self.items = items
-  } 
+  }
 }
 ```
 
 2) Create a dataSource object and pass it your `SectionOfCustomData` type:
-```swift 
-let dataSource = RxTableViewSectionedReloadDataSource<SectionOfCustomData>()
+```swift
+let dataSource = RxTableViewSectionedReloadDataSource<SectionOfCustomData>(
+  configureCell: { dataSource, tableView, indexPath, item in
+    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
+    cell.textLabel?.text = "Item \(item.anInt): \(item.aString) - \(item.aCGPoint.x):\(item.aCGPoint.y)"
+    return cell
+})
 ```
 
 3) Customize closures on the dataSource as needed:
-- `configureCell` (required)
 - `titleForHeaderInSection`
 - `titleForFooterInSection`
+- `canEditRowAtIndexPath`
+- `canMoveRowAtIndexPath`
 - etc
 
-```swift 
-dataSource.configureCell = { (ds: RxTableViewSectionedReloadDataSource<SectionOfCustomData>, tv: UITableView, ip: IndexPath, item: Item) in
-  let cell = tv.dequeueReusableCell(withIdentifier: "Cell", for: ip)
-  cell.textLabel?.text = "Item \(item.anInt): \(item.aString) - \(item.aCGPoint.x):\(item.aCGPoint.y)"
-  return cell
+```swift
+dataSource.titleForHeaderInSection = { dataSource, index in
+  return dataSource.sectionModels[index].header
 }
-dataSource.titleForHeaderInSection = { ds, index in
-  return ds.sectionModels[index].header
+
+dataSource.titleForFooterInSection = { dataSource, indexPath in
+  return dataSource.sectionModels[index].footer
+}
+
+dataSource.canEditRowAtIndexPath = { dataSource, indexPath in
+  return true
+}
+
+dataSource.canMoveRowAtIndexPath = { dataSource, indexPath in
+  return true
 }
 ```
 
 4) Define the actual data as an Observable sequence of CustomData objects and bind it to the tableView
-```swift 
+```swift
 let sections = [
   SectionOfCustomData(header: "First section", items: [CustomData(anInt: 0, aString: "zero", aCGPoint: CGPoint.zero), CustomData(anInt: 1, aString: "one", aCGPoint: CGPoint(x: 1, y: 1)) ]),
   SectionOfCustomData(header: "Second section", items: [CustomData(anInt: 2, aString: "two", aCGPoint: CGPoint(x: 2, y: 2)), CustomData(anInt: 3, aString: "three", aCGPoint: CGPoint(x: 3, y: 3)) ])