Add introductory sections to built-in function documentation

- Added introductory explanations for the following built-in functions:
  - any()
  - ascii()
  - bin()
  - bool()
  - breakpoint()
  - classmethod()
  - compile()
  - complex()
  - delattr()
  - dict()
  - dir()
  - divmod()
  - enumerate()
  - eval()
  - exec()
  - filter()
  - float()
  - format()
  - frozenset()
  - getattr()
  - globals()
  - hasattr()
  - hash()
  - help()
  - hex()
  - id()
  - import()
  - input()
  - int()
  - isinstance()
  - issubclass()
  - iter()
  - len()
  - list()
  - locals()
  - map()
  - max()
  - memoryview()
  - min()
  - next()
  - object()
  - oct()
  - open()
  - ord()
  - pow()
  - print()
  - property()
  - range()
  - repr()
  - reversed()
  - round()
  - set()
  - setattr()
  - slice()
  - sorted()
  - staticmethod()
  - str()
  - sum()
  - super()
  - tuple()
  - type()
  - vars()
  - zip()

Author: Carlos

docs/builtin/abs.md

@@ -16,6 +16,10 @@ Python abs() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
+The `abs()` function in Python is a built-in function that returns the absolute value of a number. It can handle integers, floating-point numbers, and even complex numbers (returning their magnitude). This function is useful when you need to ensure a value is positive, regardless of its original sign.
+
 ```python
 >>> abs(-1)
 # 1

docs/builtin/aiter.md

@@ -16,6 +16,10 @@ Python aiter() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
+The `aiter()` function in Python is a built-in function that returns an asynchronous iterator for an asynchronous iterable. This is the asynchronous equivalent of the `iter()` function and is essential when working with asynchronous loops (`async for`). It allows you to iterate over objects that produce values asynchronously.
+
 ## Example
 
 ```python

docs/builtin/all.md

@@ -16,6 +16,10 @@ Python all() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
+The `all()` function in Python is a built-in function that checks if all elements in an iterable are `True`. It returns `True` if every element evaluates to true, or if the iterable is empty. This is useful for validating conditions across a collection of items, such as checking if all numbers in a list are positive or if all required fields in a form are filled.
+
 ## Examples
 
 ```python

docs/builtin/any.md

@@ -16,6 +16,10 @@ Python any() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
+The `any()` function in Python is a built-in function that checks if at least one element in an iterable is `True`. It returns `True` if any element evaluates to true, and `False` if the iterable is empty or all elements are false. This is useful for quickly determining if a condition is met by any item in a collection.
+
 ## Examples
 
 ```python

docs/builtin/ascii.md

@@ -16,6 +16,10 @@ Python ascii() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
+The `ascii()` function in Python is a built-in function that returns a string containing a printable representation of an object, similar to `repr()`. However, `ascii()` escapes any non-ASCII characters with `\x`, `\u`, or `\U` escape sequences. This is useful for ensuring that a string is safe to be used in an ASCII-only environment.
+
 ## Examples
 
 ```python

docs/builtin/bin.md

@@ -16,6 +16,8 @@ Python bin() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
 The `bin()` function converts an integer into its binary representation. The resulting string is prefixed with "0b" to indicate that it's a binary number.
 
 ### Examples

docs/builtin/bool.md

@@ -16,6 +16,10 @@ Python bool() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
+The `bool()` function in Python is a built-in function that converts a value to a Boolean (`True` or `False`). It follows the standard truth testing procedure, where values like `0`, `None`, and empty collections are considered `False`, while most other values are `True`. This is fundamental for controlling the flow of your program with conditional statements.
+
 ## Examples
 
 ```python

docs/builtin/breakpoint.md

@@ -18,6 +18,10 @@ Python breakpoint() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
+The `breakpoint()` function in Python, introduced in Python 3.7, provides an easy way to enter the Python debugger (`pdb`) at a specific point in your code. It's a convenient alternative to manually importing `pdb` and calling `pdb.set_trace()`. This function simplifies the debugging process, allowing you to inspect variables and step through your code interactively.
+
 ## Example
 
 ```python

docs/builtin/classmethod.md

@@ -16,6 +16,8 @@ Python classmethod() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
 A `classmethod` is a method that is bound to the class and not the instance of the class. It takes the class itself as its first argument, conventionally named `cls`. This is in contrast to a regular instance method, which takes the instance as its first argument (`self`).
 
 They are often used for factory methods that create instances of the class in a specific way.

docs/builtin/compile.md

@@ -16,10 +16,13 @@ Python compile() built-in function
   </base-disclaimer-content>
 </base-disclaimer>
 
+## Introduction
+
 The `compile()` function in Python is a built-in function that is used to convert a string or an Abstract Syntax Tree (AST) object into a code object. This code object can then be executed by functions like <router-link to="/builtin/exec">exec()</router-link> or <router-link to="/builtin/eval">eval()</router-link>.
 
 ## Example
 
+```python
 Here's a basic example of how it works:
 
 ```python