Update DIRECTORY.md (TheAlgorithms#6414)

Co-authored-by: DenizAltunkapan <[email protected]>

Author: DenizAltunkapan

DIRECTORY.md

@@ -1,5 +1,7 @@
 # Project Structure
 
+## src
+
 - 📁 **main**
   - 📁 **java**
     - 📁 **com**
@@ -165,12 +167,10 @@
             - 📄 [Kruskal](src/main/java/com/thealgorithms/datastructures/graphs/Kruskal.java)
             - 📄 [MatrixGraphs](src/main/java/com/thealgorithms/datastructures/graphs/MatrixGraphs.java)
             - 📄 [PrimMST](src/main/java/com/thealgorithms/datastructures/graphs/PrimMST.java)
-            - 📄 [README](src/main/java/com/thealgorithms/datastructures/graphs/README.md)
             - 📄 [TarjansAlgorithm](src/main/java/com/thealgorithms/datastructures/graphs/TarjansAlgorithm.java)
             - 📄 [UndirectedAdjacencyListGraph](src/main/java/com/thealgorithms/datastructures/graphs/UndirectedAdjacencyListGraph.java)
             - 📄 [WelshPowell](src/main/java/com/thealgorithms/datastructures/graphs/WelshPowell.java)
           - 📁 **hashmap**
-            - 📄 [Readme](src/main/java/com/thealgorithms/datastructures/hashmap/Readme.md)
             - 📁 **hashing**
               - 📄 [GenericHashMapUsingArray](src/main/java/com/thealgorithms/datastructures/hashmap/hashing/GenericHashMapUsingArray.java)
               - 📄 [GenericHashMapUsingArrayList](src/main/java/com/thealgorithms/datastructures/hashmap/hashing/GenericHashMapUsingArrayList.java)
@@ -194,7 +194,6 @@
             - 📄 [MergeKSortedArrays](src/main/java/com/thealgorithms/datastructures/heaps/MergeKSortedArrays.java)
             - 📄 [MinHeap](src/main/java/com/thealgorithms/datastructures/heaps/MinHeap.java)
             - 📄 [MinPriorityQueue](src/main/java/com/thealgorithms/datastructures/heaps/MinPriorityQueue.java)
-            - 📄 [Readme](src/main/java/com/thealgorithms/datastructures/heaps/Readme.md)
           - 📁 **lists**
             - 📄 [CircleLinkedList](src/main/java/com/thealgorithms/datastructures/lists/CircleLinkedList.java)
             - 📄 [CountSinglyLinkedListRecursion](src/main/java/com/thealgorithms/datastructures/lists/CountSinglyLinkedListRecursion.java)
@@ -205,7 +204,6 @@
             - 📄 [MergeSortedArrayList](src/main/java/com/thealgorithms/datastructures/lists/MergeSortedArrayList.java)
             - 📄 [MergeSortedSinglyLinkedList](src/main/java/com/thealgorithms/datastructures/lists/MergeSortedSinglyLinkedList.java)
             - 📄 [QuickSortLinkedList](src/main/java/com/thealgorithms/datastructures/lists/QuickSortLinkedList.java)
-            - 📄 [README](src/main/java/com/thealgorithms/datastructures/lists/README.md)
             - 📄 [RandomNode](src/main/java/com/thealgorithms/datastructures/lists/RandomNode.java)
             - 📄 [ReverseKGroup](src/main/java/com/thealgorithms/datastructures/lists/ReverseKGroup.java)
             - 📄 [RotateSinglyLinkedLists](src/main/java/com/thealgorithms/datastructures/lists/RotateSinglyLinkedLists.java)
@@ -222,12 +220,10 @@
             - 📄 [PriorityQueues](src/main/java/com/thealgorithms/datastructures/queues/PriorityQueues.java)
             - 📄 [Queue](src/main/java/com/thealgorithms/datastructures/queues/Queue.java)
             - 📄 [QueueByTwoStacks](src/main/java/com/thealgorithms/datastructures/queues/QueueByTwoStacks.java)
-            - 📄 [README](src/main/java/com/thealgorithms/datastructures/queues/README.md)
             - 📄 [SlidingWindowMaximum](src/main/java/com/thealgorithms/datastructures/queues/SlidingWindowMaximum.java)
             - 📄 [TokenBucket](src/main/java/com/thealgorithms/datastructures/queues/TokenBucket.java)
           - 📁 **stacks**
             - 📄 [NodeStack](src/main/java/com/thealgorithms/datastructures/stacks/NodeStack.java)
-            - 📄 [README](src/main/java/com/thealgorithms/datastructures/stacks/README.md)
             - 📄 [ReverseStack](src/main/java/com/thealgorithms/datastructures/stacks/ReverseStack.java)
             - 📄 [Stack](src/main/java/com/thealgorithms/datastructures/stacks/Stack.java)
             - 📄 [StackArray](src/main/java/com/thealgorithms/datastructures/stacks/StackArray.java)
@@ -259,7 +255,6 @@
             - 📄 [PreOrderTraversal](src/main/java/com/thealgorithms/datastructures/trees/PreOrderTraversal.java)
             - 📄 [PrintTopViewofTree](src/main/java/com/thealgorithms/datastructures/trees/PrintTopViewofTree.java)
             - 📄 [QuadTree](src/main/java/com/thealgorithms/datastructures/trees/QuadTree.java)
-            - 📄 [README](src/main/java/com/thealgorithms/datastructures/trees/README.md)
             - 📄 [RedBlackBST](src/main/java/com/thealgorithms/datastructures/trees/RedBlackBST.java)
             - 📄 [SameTreesCheck](src/main/java/com/thealgorithms/datastructures/trees/SameTreesCheck.java)
             - 📄 [SegmentTree](src/main/java/com/thealgorithms/datastructures/trees/SegmentTree.java)
@@ -749,7 +744,6 @@
           - 📄 [ValidParentheses](src/main/java/com/thealgorithms/strings/ValidParentheses.java)
           - 📄 [WordLadder](src/main/java/com/thealgorithms/strings/WordLadder.java)
           - 📁 **zigZagPattern**
-            - 📄 [README](src/main/java/com/thealgorithms/strings/zigZagPattern/README.md)
             - 📄 [ZigZagPattern](src/main/java/com/thealgorithms/strings/zigZagPattern/ZigZagPattern.java)
         - 📁 **tree**
           - 📄 [HeavyLightDecomposition](src/main/java/com/thealgorithms/tree/HeavyLightDecomposition.java)
@@ -1416,4 +1410,4 @@
           - 📁 **zigZagPattern**
             - 📄 [ZigZagPatternTest](src/test/java/com/thealgorithms/strings/zigZagPattern/ZigZagPatternTest.java)
         - 📁 **tree**
-          - 📄 [HeavyLightDecompositionTest](src/test/java/com/thealgorithms/tree/HeavyLightDecompositionTest.java)
+          - 📄 [HeavyLightDecompositionTest](src/test/java/com/thealgorithms/tree/HeavyLightDecompositionTest.java)