feat: add Arrays Overview

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+# 🧭 Topic: Arrays
+
+
+> [!info] Quick Overview
+> 
+
+---
+## 📌 Covered in This Topic
+
+- Introduction to arrays
+    - What arrays are at a conceptual level
+    - Why we need them for grouped storage and efficient access
+    - Arrays as contiguous blocks of memory
+- Why array indices start at zero
+    - Pointer + offset reasoning
+    - Historical and implementation background
+- Variable Length Arrays (VLAs)
+    - What they are
+    - Why they were removed from standard C++
+    - Summary of compiler behavior and portability issues
+- Declaring static arrays
+    - Fixed-size nature
+    - Examples of valid declarations
+- Initialization techniques
+    - Default initialization
+    - Partial initialization
+    - Aggregate initialization
+    - Examples:
+        - `int arr0[4] {};`
+        - `int arr1[4] {1};`
+- Accessing elements
+    - Subscript operator usage
+    - Input/output rules
+    - Why the following fail:
+        - `arr0 = arr1;`
+        - `cin >> firstArr;`
+        - `cout << firstArr;`
+- Index out-of-bounds and undefined behavior
+    - No boundary checking in C++
+    - Overwriting other memory
+    - Dangerous cases and debugging difficulty
+- How arrays are stored in memory
+    - Contiguous memory layout
+    - Relationship to pointers
+    - Implicit decay to pointer in expressions
+- Using `sizeof` with arrays
+    - Getting total size in bytes
+    - Getting number of elements
+    - Why `sizeof` gives different results inside functions
+- Multidimensional arrays
+    - Declaration of 2D and 3D arrays
+    - Row-major order
+    - Access patterns and common mistakes
+- Passing arrays to functions
+    - Array-to-pointer decay
+    - Why arrays behave like pass-by-reference
+    - Why arrays cannot be returned as raw types
+    - Correct alternatives for returning array-like structures
+- Returning arrays from functions (workarounds)
+    - Returning pointers(will be covered later)
+    - Returning structs
+    - Using `std::array` or `std::vector` (future topic)
+- Range-based for (`foreach`) loops with arrays
+    - Syntax
+    - Under-the-hood mechanics
+    - When it can and cannot be used
+- Teaser for dynamic arrays
+    - Limitations of static arrays
+    - Motivation for `new[]`, `delete[]`
+    - Transition toward `std::vector` and dynamic memory in later topics
+- C-style strings
+    - Character arrays with `'\0'` termination
+    - How they differ from `std::string`
+    - Basic operations and pitfalls
+- **C++ `std::string`**
+	- Introduction to the `std::string` class
+	- Why strings are safer than C-style arrays
+	- Common operations:
+	    - `.length()` / `.size()`
+	    - `.empty()`
+	    - `.substr()`
+	    - `.find()`
+	    - `.compare()`
+	    - `.append()` / `+` concatenation
+	    - `operator[]` for access
+	- Input/output with strings
+	- Mutability and memory handling differences compared to arrays 
+---
+## 📑 Slides & Materials
+
+- 👨‍🏫 [Professor Slides (PDF)](01-topics/05-arrays/4-ProfessorSlides.md)
+- 🧑‍🏫 [TA Workshop Slides (PDF)](01-topics/05-arrays/5-TASlides.md)
+
+---
+## 🛠️ Workshop & Assignments
+
+- 💬 [Workshop Questions]()
+- 🧮 [Assignments]()
+- ❓ [Q&A and Common Issues]()
+
+---
+## 🌐 Additional Resources
+
+
+
+---
+## ⏩ Navigation
+
+- ⬅️ [Previous Topic: Functions 1]()  
+- ➡️ [Next Topic: Functions 2]()
+---
+
+> [!tip] Tip
+> If something doesn’t make sense — **don’t stay stuck alone**. Ask the TA to clarify it right away. Often, a quick question can save you a lot of time and frustration. Remember: if you’re confused, chances are others are too.
+