Update README.md

README.md

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 # apple-data
 
-This repository target to solve the problem that reading [Apple](https://apple.com) pipeline job information from csv files, organize them and then write result to a seperate csv/excel file.
+This repository target to solve the problem that reading [Apple](https://apple.com) pipeline job information from csv files, organize them and then write result to a seperate csv/excel file in order to analyze the yield of product in manufacturing and prodcution process.
 
 FYI
 Data: https://drive.google.com/file/d/1hp1VmPAk7XWwgs-BqCEn__G6gU4Hhlq7/view?usp=sharing