Add Chapter 2: Exploring Rust Basics

book-compendium/chapter-2/README.md

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+# Chapter 2: Exploring Rust Basics
+
+This chapter introduces key Rust concepts with simple examples.
+
+1. **`variable.rs`**: Demonstrates variables, immutability, and mutability in Rust.
+2. **`control_flow.rs`**: Explains basic control flow constructs like `if-else` and loops.
+3. **`ownership.rs`**: Introduces Rust's ownership model and function interactions.

book-compendium/chapter-2/control_flow.rs

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+fn main() {
+    let number = 7;
+
+    if number < 10 {
+        println!("Number is less than 10");
+    } else {
+        println!("Number is greater than or equal to 10");
+    }
+
+    for i in 0..5 {
+        println!("Value of i: {}", i);
+    }
+}

book-compendium/chapter-2/ownership.rs

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+fn main() {
+    let s = String::from("Hello, Ownership!");
+
+    take_ownership(s);
+
+    // Uncommenting the line below will cause an error, as `s` is no longer valid.
+    // println!("{}", s);
+}
+
+fn take_ownership(some_string: String) {
+    println!("{}", some_string);
+}

book-compendium/chapter-2/varible.rs

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+fn main() {
+    let x = 5; // Immutable variable
+    println!("x = {}", x);
+
+    let mut y = 10; // Mutable variable
+    println!("y before mutation = {}", y);
+    y = 15;
+    println!("y after mutation = {}", y);
+}