Update README.md. Add array foreach example. Add better formatting.

Signed-off-by: funkywaddle <paul@funkywaddle.com>

README.md

@@ -22,47 +22,61 @@ Waddle is a modern, expressive programming language designed to be intuitive, re
 ## Basic Syntax
 
 ### Type Declaration
+
+#### Basic type definition
 ```waddle
-// Basic type definition
 Animal {
     // Type implementation
 }
-
-// Inheritance
+```
+#### Inheritance
+```waddle
 Animal/Dog {
     // Dog-specific implementations
 }
+```
 
-// Interface definition
+#### Interface definition
+```waddle
 @Mammal {
     // Interface methods
 }
+```
 
-// Interface implementation
+#### Interface implementation
+```waddle
 Animal/Dog -> [Mammal, Domesticated] {
     // Multiple interface support
 }
 ```
 
 ### Functions
+
+#### Function declaration
+
+##### Public function
 ```waddle
-// Function declaration
-// Public function
 +fn calculateArea(width: Integer, height: Integer) -> [Decimal] {
     rtn width.multiply(height);
 }
+```
 
-// Protected Function
+##### Protected Function
+```waddle
 fn calculateArea(width: Integer, height: Integer) -> [Decimal] {
     rtn width.multiply(height);
 }
+```
 
-// Private Function
+##### Private Function
+```waddle
 -fn calculateArea(width: Integer, height: Integer) -> [Decimal] {
     rtn width.multiply(height);
 }
+```
 
-// Lambda expression
+##### Lambda expression
+```waddle
 areaCalculator = fn(width: Integer, height: Integer) -> [Decimal] {
     rtn width.multiply(height);
 }
@@ -90,26 +104,46 @@ result = riskyOperation().attempt {
 ```
 
 ### Iteration
+
+#### Forward iteration
 ```waddle
-// Forward iteration
 loop(i, 0->10) {
     my.output.print(i);
 }
+```
 
-// Foward iteration, with step
+#### Foward iteration, with step
+```waddle
 loop(i, 0->10, 2) {
     my.output.print(i); // outputs 0, 2, 4, 6, 8, 10
 }
+```
 
-// Reverse iteration
+#### Reverse iteration
+```waddle
 rloop(i, 10->0) {
     my.output.print(i);
 }
+```
 
-// Reverse iteration, with step
+#### Reverse iteration, with step
+```waddle
 rloop(i, 10->0, 2) {
     my.output.print(i); // outputs 10, 8, 6, 4, 2, 0
 }
+```
+
+#### Foreach loop on arrays
+```waddle
+Integer<> nums.set(<1, 2, 3, 4>);
+
+nums.each(
+    i -> {
+        if(i.mod(2).eq(0)){
+            my.output.print(i); // outputs 2, 4
+        }
+    }
+);
 
 ```