Update README.md

README.md

@@ -22,6 +22,7 @@ The set has about 1060 English items across 18 tasks and six domains. Items are
 
 1. Do NOT train on this dataset! It's for evaluation only!!
 2. This is for BASE models only - not for instruction tuned models. Maybe we'll release a benchmark for instruct models too...
+3. Your model SHOULD have at least 512 tokens of context window
 
 ## Domains