Update README.md

Author: ravut8

README.md

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-<p align=center> Validation library for CSV files against defined schema. Easy to use and customize. Developed by <a href="https://logicspark.com">Logic Spark</a> team. </p>
+<p align=center> Validation library for CSV files against defined schema. Easy to use and customize. Developed by <a href="https://www.logicspark.com">Logic Spark</a> team. </p>
 
 <p align=center> CSV import validation is a Typescript library that is utilize the function to read CSV data from <a href="https://github.com/exceljs/exceljs">ExcelJS<a/>.</p>
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