Update requirements.txt with tf-cpu and tf-aarch64
diff --git a/requirements.txt b/requirements.txt
index 6313cecee57..a7c567a67ed 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ seaborn>=0.11.0
 # nvidia-pyindex  # TensorRT export
 # nvidia-tensorrt  # TensorRT export
 # scikit-learn==0.19.2  # CoreML quantization
-# tensorflow>=2.4.1  # TFLite export
+# tensorflow>=2.4.1  # TFLite export (or tensorflow-cpu, tensorflow-aarch64)
 # tensorflowjs>=3.9.0  # TF.js export
 # openvino-dev  # OpenVINO export
 



## 🛠️ PR Summary

<sub>Made with ❤️ by [Ultralytics Actions](https://github.com/ultralytics/actions)<sub>

### 🌟 Summary
Enhanced TensorFlow compatibility for YOLOv5 TFLite export

### 📊 Key Changes
- Updated `requirements.txt` to clarify TensorFlow requirements for TFLite export.

### 🎯 Purpose & Impact
- 🎨 **Simplicity for Users**: Helps users understand that they can use different TensorFlow packages (`tensorflow-cpu`, `tensorflow-aarch64`) based on their hardware for TFLite model exports.
- ⚙️ **Flexibility**: Provides users with more options for TensorFlow installation, accommodating a variety of system architectures.
- 🚀 **Accessibility**: Makes it easier for users to export their YOLOv5 models to TFLite format, potentially expanding usage to more platforms, such as lightweight or mobile devices.