Update README.md

README.md

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 ### Description
 
-FabWrinkle-13, a newly generated dataset of $15,187$ synthetic images covering $13$ different types of plain and patterned fabrics. The dataset was created using a synthetic data generation pipeline that employs OpenGL with Gouraud shading, Lambertian illumination, and random camera positions. Wrinkles were generated by dropping a cloth mesh from a height onto random obstacles.
+FabWrinkle-13, a newly generated dataset of 15,187 synthetic images covering 13 different types of plain and patterned fabrics. The dataset was created using a synthetic data generation pipeline that employs OpenGL with Gouraud shading, Lambertian illumination, and random camera positions. Wrinkles were generated by dropping a cloth mesh from a height onto random obstacles.
 
 Folders are named by the category of the fabric. In each folder there are 3 files for each data. 
 * The fabric image - type: png, filename: "unique id", ex: 10522300.png