Update README.md

README.md

@@ -20,6 +20,8 @@ Despite being trained on a smaller dataset of 1.4 trillion tokens—compared to
 It demonstrates superior performance in benchmarks like MMLU, HumanEval, and MBPP. 
 By comparing Crystal with other similar work, Crystal is quite balance on language and coding tasks.
 
+Note: Crystal was formerly known as CrystalCoder.
+
 <center><img src="performance_in_benchmarks.png" alt="performance in benchmarks" /></center>
 
 | Performance on Standard Benchmarks             |