[scripts.train] Fix description

src/mednet/scripts/train.py

@@ -86,12 +86,11 @@ def reusable_options(f):
         "parameter, used in conjunction with the batch-size, may be used to "
         "reduce the number of samples loaded in each iteration, to affect memory "
         "usage in exchange for processing time (more iterations). This is "
-        "especially interesting when one is training on GPUs with a limited amount "
-        "of onboard RAM. processing time (more iterations).  This is especially interesting "
-        "when one is training on GPUs with limited RAM. The default of 1 forces "
-        "the whole batch to be processed at once. Otherwise the batch is "
-        "multiplied by accumulate-grad-batches pieces, and gradients are accumulated "
-        "to complete each step.",
+        "useful interesting when one is training on GPUs with a limited amount "
+        "of onboard RAM. The default of 1 forces the whole batch to be "
+        "processed at once. Otherwise the batch is multiplied by "
+        "accumulate-grad-batches pieces, and gradients are accumulated "
+        "to complete each training step.",
         required=True,
         show_default=True,
         default=1,