Refactor: Section 2.4. update

### Motivation
- Section 2.4. Create the List of Landmarks

### Key Changes
- Section 2.4. Create the List of Landmarks 예제 코드 및 주석 추가

### To Reviewers
- 없음

tutorial.xcodeproj/project.pbxproj

@@ -15,6 +15,7 @@
 		941CE6C628A4B42100484938 /* Landmark.swift in Sources */ = {isa = PBXBuildFile; fileRef = 941CE6C528A4B42100484938 /* Landmark.swift */; };
 		941CE6C828A4B83C00484938 /* ModelData.swift in Sources */ = {isa = PBXBuildFile; fileRef = 941CE6C728A4B83C00484938 /* ModelData.swift */; };
 		941CE6CC28A4BC7900484938 /* LandmarkRow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 941CE6CB28A4BC7900484938 /* LandmarkRow.swift */; };
+		941CE6CE28A4C2E400484938 /* LandmarkList.swift in Sources */ = {isa = PBXBuildFile; fileRef = 941CE6CD28A4C2E400484938 /* LandmarkList.swift */; };
 		9D5E3EBA280475CB0076AFDF /* tutorialApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9D5E3EB9280475CB0076AFDF /* tutorialApp.swift */; };
 		9D5E3EBC280475CB0076AFDF /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9D5E3EBB280475CB0076AFDF /* ContentView.swift */; };
 		9D5E3EC1280475CC0076AFDF /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9D5E3EC0280475CC0076AFDF /* Preview Assets.xcassets */; };
@@ -29,6 +30,7 @@
 		941CE6C528A4B42100484938 /* Landmark.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Landmark.swift; sourceTree = "<group>"; };
 		941CE6C728A4B83C00484938 /* ModelData.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ModelData.swift; sourceTree = "<group>"; };
 		941CE6CB28A4BC7900484938 /* LandmarkRow.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LandmarkRow.swift; sourceTree = "<group>"; };
+		941CE6CD28A4C2E400484938 /* LandmarkList.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LandmarkList.swift; sourceTree = "<group>"; };
 		9D5E3EB6280475CB0076AFDF /* SwiftUITutorialWithNotes.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = SwiftUITutorialWithNotes.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		9D5E3EB9280475CB0076AFDF /* tutorialApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = tutorialApp.swift; sourceTree = "<group>"; };
 		9D5E3EBB280475CB0076AFDF /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
@@ -63,6 +65,7 @@
 				941CE6B928A4963700484938 /* CircleImage.swift */,
 				941CE6C128A499BD00484938 /* MapView.swift */,
 				941CE6CB28A4BC7900484938 /* LandmarkRow.swift */,
+				941CE6CD28A4C2E400484938 /* LandmarkList.swift */,
 			);
 			path = Views;
 			sourceTree = "<group>";
@@ -187,6 +190,7 @@
 				941CE6BB28A4963700484938 /* CircleImage.swift in Sources */,
 				941CE6C228A499BD00484938 /* MapView.swift in Sources */,
 				9D5E3EBA280475CB0076AFDF /* tutorialApp.swift in Sources */,
+				941CE6CE28A4C2E400484938 /* LandmarkList.swift in Sources */,
 				940ECDAE28A37ECF00092638 /* MainContentView.swift in Sources */,
 				941CE6C628A4B42100484938 /* Landmark.swift in Sources */,
 				941CE6CC28A4BC7900484938 /* LandmarkRow.swift in Sources */,

tutorial/Views/LandmarkList.swift

@@ -0,0 +1,23 @@
+//
+//  LandmarkList.swift
+//  tutorial
+//
+//  Created by 김제필 on 8/11/22.
+//
+
+import SwiftUI
+
+struct LandmarkList: View {
+    var body: some View {
+        List {  // 2.4.2. List 객체 내부에 LandmarkRow 인스턴스를 배치한다
+            LandmarkRow(landmark: landmarks[0])
+            LandmarkRow(landmark: landmarks[1])
+        }
+    }
+}
+
+struct LandmarkList_Previews: PreviewProvider {
+    static var previews: some View {
+        LandmarkList()
+    }
+}

tutorial/Views/LandmarkRow.swift

@@ -37,3 +37,7 @@ struct LandmarkRow_Previews: PreviewProvider {
             .previewLayout(.fixed(width: 300, height: 70))
     }
 }
+
+
+// 여기까지 마쳤다면 LandmarkList.swift 파일을 생성하자.
+// 해당 파일은 SwiftUIView 파일이다.