Update README.md

README.md

@@ -37,32 +37,32 @@ In any Swift file where you want to use SwiftNP:
 import SwiftNP
 ```
 
-Usage
+## Usage
 
-Creating an NDArray
+### Creating an NDArray
 
 You can create a multi-dimensional array by specifying the shape and default values:
 
 ```swift
 let array = SNP.ones(shape: [1, 3, 512, 512])
 ```
 
-Basic Array Operations
+### Basic Array Operations
 
 SwiftNP supports element-wise operations, reshaping, and much more:
 
 ```swift
 let reshapedArray = array.reshape([1, 9])
 ```
 
-Data Types
+### Data Types
 
 SwiftNP supports a wide range of numeric data types. You can specify the data type when creating an NDArray:
 
 ```swift
 let floatArray = NDArray(shape: [2, 2], dtype: .float64, defaultValue: 21.0)
 ```
 
-License
+## License
 
-This project is licensed under the MIT License. See the LICENSE file for details.
+This project is licensed under the MIT License. See the LICENSE file for details.