(chore): Add Supported Types section

.gitignore

@@ -0,0 +1,2 @@
+
+*.DS_Store

README.md

@@ -22,12 +22,18 @@ The Scribble GYB configuration simplifies boilerplate code generation for Scribb
    3.4 [Loops](#loops)
 
 4. [Supported Types](#supported-types)
+
+   4.1 [Supported Swift Types](#supported-swift-types)
+
+   4.2 [Supported ObjC Types](#supported-objective-c-types)
+
+   4.3 [Supported ObjC++ Types](#supported-objective-c-types-1)
 
 5. [Using gyb_utils.py for Shared Utilities](#using-gyb-utils-py-for-shared-utilities)
 
-   4.1 [Declaring global variables](#declaring-global-utilities-in-gyb-utils-py)
+   5.1 [Declaring global variables](#declaring-global-utilities-in-gyb-utils-py)
 
-   4.2 [Importing and Using Utilities](#importing-and-using-utilities-in-gyb-templates)
+   5.2 [Importing and Using Utilities](#importing-and-using-utilities-in-gyb-templates)
 
 6. [Using GYB with ObjC and ObjC++](#using-gyb-with-objective-c-and-objective-c++)
 
@@ -214,6 +220,47 @@ struct User {
 
 ## Supported Types
 
+GYB supports a variety of data types, allowing you to easily generate code with the required type annotations and variable declarations. The following types are supported:
+
+### Supported Swift Types
+
+| **Type**       | **Description**                                   | **Value**                                   | **Example**                |
+|----------------|---------------------------------------------------|---------------------------------------------|----------------------------|
+| `String`       | Represents a sequence of characters.              | N/A                                         | `"Hello, World!"`           |
+| `Int`          | Represents a signed integer.                      | `-9223372036854775808` to `9223372036854775807` | `42`                       |
+| `Int8`         | Represents an 8-bit signed integer.               | `-128` to `127`                             | `Int8(127)`                |
+| `Int16`        | Represents a 16-bit signed integer.               | `-32768` to `32767`                         | `Int16(32767)`             |
+| `Int32`        | Represents a 32-bit signed integer.               | `-2147483648` to `2147483647`               | `Int32(2147483647)`        |
+| `Int64`        | Represents a 64-bit signed integer.               | `-9223372036854775808` to `9223372036854775807` | `Int64(9223372036854775807)` |
+| `UInt8`        | Represents an 8-bit unsigned integer.             | `0` to `255`                                | `UInt8(255)`               |
+| `UInt16`       | Represents a 16-bit unsigned integer.             | `0` to `65535`                              | `UInt16(65535)`            |
+| `UInt32`       | Represents a 32-bit unsigned integer.             | `0` to `4294967295`                         | `UInt32(4294967295)`       |
+| `UInt64`       | Represents a 64-bit unsigned integer.             | `0` to `18446744073709551615`               | `UInt64(18446744073709551615)` |
+| `Bool`         | Represents a Boolean value (`true` or `false`).   | `true` or `false`                           | `true`                     |
+| `Double`       | Represents a double-precision floating-point number. | ~±1.7e308                                  | `3.14159`                  |
+| `Float`        | Represents a single-precision floating-point number. | ~±3.4e38                                   | `2.71828f`                 |
+
+### Supported Objective-C Types
+
+| **Type**       | **Description**                                   | **Value**                                   | **Example**                |
+|----------------|---------------------------------------------------|---------------------------------------------|----------------------------|
+| `NSString`     | Represents a string object.                       | N/A                                         | `@"Hello, World!"`          |
+| `NSInteger`    | Represents a signed integer.                      | `-9223372036854775808` to `9223372036854775807` | `NSInteger value = 42;`    |
+| `NSUInteger`   | Represents an unsigned integer.                   | `0` to `18446744073709551615`               | `NSUInteger count = 10;`   |
+| `BOOL`         | Represents a Boolean value (`YES` or `NO`).        | `YES` or `NO`                               | `BOOL isActive = YES;`     |
+| `CGFloat`      | Represents a floating-point number, typically used for UI measurements. | Varies depending on the platform            | `CGFloat width = 100.0;`   |
+
+### Supported Objective-C++ Types
+
+| **Type**       | **Description**                                   | **Value**                                   | **Example**                |
+|----------------|---------------------------------------------------|---------------------------------------------|----------------------------|
+| `std::string`  | Represents a string object from the C++ Standard Library. | N/A                                     | `std::string name = "John";`|
+| `int`          | Represents a signed integer.                      | `-2147483648` to `2147483647`               | `int age = 30;`            |
+| `unsigned int` | Represents an unsigned integer.                   | `0` to `4294967295`                         | `unsigned int count = 5;`  |
+| `bool`         | Represents a Boolean value (`true` or `false`).   | `true` or `false`                           | `bool isValid = true;`     |
+| `float`        | Represents a single-precision floating-point number. | ~±3.4e38                                   | `float pi = 3.14f;`        |
+| `double`       | Represents a double-precision floating-point number. | ~±1.7e308                                  | `double e = 2.71828;`      |
+
 ## Using gyb_utils.py for Shared Utilities
 
 The `gyb_utils.py` file in the Scribble GYB configuration allows you to declare global variables, helper functions, or imports that can be reused across different GYB templates. This is especially useful when you have common logic or variables that need to be shared.