Little fix for order of feed news.

app/src/main/java/ru/defend/defdevteam/tstu/NewsItemList.java

@@ -4,8 +4,8 @@ import android.os.Build;
 import android.util.Log;
 import android.view.View;
 
-import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.Map;
 
 /**
@@ -13,10 +13,11 @@ import java.util.Map;
  */
 
 public class NewsItemList {
-    private HashMap<Integer, NewsItemGroup> hashMap;
+    private LinkedHashMap<Integer, NewsItemGroup> hashMap;
+
 
     NewsItemList() {
-        hashMap = new HashMap<>();
+        hashMap = new LinkedHashMap<>();
     }
 
     public NewsItemGroup[] toArray() {