Update README.md

This is a GQA version of the original model facebook/opt-125m. In this version, the original MHA architecture is preserved but instead of having a single K/V head, different K/V heads corresponding to the same group have the same mean-pooled K or V values. It has 6 groups of KV heads per layer instead of original 12 KV heads in the MHA implementation.

README.md

@@ -1,3 +1,6 @@
 ---
 license: mit
----
+language:
+- en
+library_name: transformers
+---