Fix README about using Paddle-Lite to deploy

deploy/lite/readme_en.md

 
 # Tutorial of PaddleOCR Mobile deployment
 
-This tutorial will introduce how to use paddle-lite to deploy paddleOCR ultra-lightweight Chinese and English detection models on mobile phones.
+This tutorial will introduce how to use [paddle-lite](https://github.com/PaddlePaddle/Paddle-Lite) to deploy paddleOCR ultra-lightweight Chinese and English detection models on mobile phones.
 
 paddle-lite is a lightweight inference engine for PaddlePaddle.
-It provides efficient inference capabilities for mobile phones and IOTs,
+It provides efficient inference capabilities for mobile phones and IoTs,
 and extensively integrates cross-platform hardware to provide lightweight
 deployment solutions for end-side deployment issues.