Update README.md

Signed-off-by: Subhransu Bhattacharjee <[email protected]>

README.md

@@ -9,7 +9,8 @@ Mangrove is a utility data structure designed to manage various types of data wi
 - **Dynamic Configuration**: Use the `config()` function to easily specify data type constraints for various depths. The system prevents incompatible configurations.
 - **Data Ingestion**: With `add_data()`, you can add new variables dynamically while ensuring they meet the established type and depth requirements.
 - **Insightful Summaries**: The `summary()` method provides a quick, detailed overview of your data's types, depths, and more.
-- **Dynamic Access**: Use Pythonic `__getattr__` and `__setattr__` methods for on-the-fly variable access, with robust error handling. 
+- **Dynamic Access**: Use Pythonic `__getattr__` and `__setattr__` methods for on-the-fly variable access, with robust error handling.
+- **Result Caching**: We use caching to store local information to prevent too many Dictionary lookups.
 
 ## Special Functionalities
 - **Seamless GPU Acceleration**: The `tocuda` method effortlessly transfers your data to a CUDA-enabled GPU.