Update README.md

README.md

@@ -16,7 +16,7 @@ The dataset is roughly 24GBs in storage size when decompressed and has 5489000 r
 
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 #### Data source proportions for SlimPajama-627B and SlimPajama-6B
-For sanity check, I recaluclated the byte proportion of the sampled version, it rougly matches the original dataset.
+For sanity purpose, I recaluclated the byte proportion of the sampled version, it rougly matches the original dataset.
 
 
 | Data source   | SlimPajama-627B | SlimPajama-6B |