Updated project README files

Arrays and Hash Tables sections complete

Author: CoffeelessProgrammer

Algorithms/README.md

@@ -0,0 +1,18 @@
+# Algorithms
+
+## Core
+- [ ] Recursion
+- [ ] Dynamic Programming
+- [ ] Comparison Sorting
+  - [ ] *Merge Sort*
+  - [ ] *Quick Sort*
+  - [ ] Bubble Sort
+  - [ ] Selection Sort
+  - [ ] Insertion Sort
+- [ ] Searching
+  - [ ] Linear Search
+  - [ ] Binary Search
+  - [ ] Breadth First Search (BFS)
+  - [ ] Depth First Search (DFS)
+
+## Resources

Data-Structures/README.md

@@ -0,0 +1,29 @@
+# Data Structures
+
+## Core
+- [X] Arrays
+- [X] Hash Tables
+- [ ] Stacks
+- [ ] Queues
+- [ ] Linked Lists
+- [ ] Trees
+  - [ ] Binary Search Tree (BST)
+  - AVL Tree
+  - Red Black Tree
+  - Binary Heap
+    - Priority Queue
+  - Trie
+- [ ] Graphs
+
+## Resources
+- [The Data Structures Handbook](https://www.thedshandbook.com/ "DS Handbook")
+- [Comprehensive List of Data Structures](https://en.wikipedia.org/wiki/List_of_data_structures "Wikipedia: DS List")
+
+### Hash Tables
+- [MD5 Hash Generator](http://www.miraclesalad.com/webtools/md5.php)
+- [Hash Table Animation](https://www.cs.usfca.edu/~galles/visualization/OpenHash.html)
+- [Hash Table | Wikipedia](https://en.wikipedia.org/wiki/Hash_table)
+- [Associative Arrays | Wikipedia](https://en.wikipedia.org/wiki/Comparison_of_programming_languages_(associative_array) "Hash Tables (aka Associative Arrays)")
+
+### Trees
+- [BST: VisuAlgo](https://visualgo.net/bn/bst?slide=1)

README.md

@@ -1,6 +1,6 @@
 # Data Structures & Algorithms in TypeScript
 
-## Topics
+## Topics Overview
 
 ### Algorithmic Complexity Analysis
 - [X] Big O Notation
@@ -14,12 +14,6 @@
 - [ ] Queues
 - [ ] Linked Lists
 - [ ] Trees
-  - [ ] Binary Search Tree (BST)
-  - [ ] AVL Tree
-  - [ ] Red Black Tree
-  - [ ] Binary Heap
-    - Priority Queue
-  - [ ] Trie
 - [ ] Graphs
 
 ### Algorithms
@@ -28,20 +22,17 @@
 - [ ] Comparison Sorting
   - [ ] *Merge Sort*
   - [ ] *Quick Sort*
-  - [ ] Bubble Sort
-  - [ ] Selection Sort
-  - [ ] Insertion Sort
 - [ ] Searching
   - [ ] Linear Search
   - [ ] Binary Search
-  - [ ] Breadth First Search (BFS)
-  - [ ] Depth First Search (DFS)
+  - [ ] BFS & DFS
 
 ## Environment
 - Deno 1.2.1
 - V8 8.5.216
 - TypeScript 3.9.2
 
 ## Resources
-- [The Data Structures Handbook](https://www.thedshandbook.com/ "DS Handbook")
-- [Comprehensive List of Data Structures](https://en.wikipedia.org/wiki/List_of_data_structures "Wikipedia: DS List")
+- [Data Structures & Algorithms: Course Overview](https://coggle.it/diagram/W5E5tqYlrXvFJPsq/t/master-the-interview-click-here-for-course-link "Course and Mindmap by Andrei Neagoie")
+- [Comprehensive List of Data Structures](https://en.wikipedia.org/wiki/List_of_data_structures "Wikipedia: DS List")
+- [The Big-O Algorithm Complexity Cheat Sheet](https://www.bigocheatsheet.com/ "Big O Cheat Sheet")