Update readme

readme

@@ -1,13 +1,4 @@
-sx/:
-	synthetic data, high resolution without noise, size = (256, 256)
-nx2/:
-	synthetic data, low resolution data with some random noise, size = (128, 128)
-
-field/:
-	three field seismic data, the size is avaliable from their name, 
-	such as "lulia_592x400.dat", its size is (592, 400).
-
-
+This dataset is part of the work by Jintao Li et al. https://github.com/JintaoLee-Roger/SeismicSuperResolution
 
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