update README.md

README.md

@@ -160,19 +160,19 @@ The dataset is split as follows:
 
 - Training set:
 	- 149 unique patients
-	- 304 images
+	- 304 total images
 		- T1: 133 images
 		- T2: 145 images
 		- T2-SPACE: 26 images
 - Validation set:
 	- 37 unique patients
-	- 75 images
+	- 75 total images
 		- T1: 34 images
 		- T2: 34 images
 		- T2-SPACE: 7 images
 - Test set:
 	- 32 unique patients
-	- 68 images
+	- 68 total images
 		- T1: 29 images
 		- T2: 31 images
 		- T2-SPACE: 8 images