update with 0.8

Author: vincentqb

README.md

@@ -37,6 +37,7 @@ The following are the corresponding ``torchaudio`` versions and supported Python
 | ``torch``                | ``torchaudio``           | ``python``                      |
 | ------------------------ | ------------------------ | ------------------------------- |
 | ``master`` / ``nightly`` | ``master`` / ``nightly`` | ``>=3.6``, ``<=3.9``            |
+| ``1.8.0``                | ``0.8.0``                | ``>=3.6``, ``<=3.9``            |
 | ``1.7.1``                | ``0.7.2``                | ``>=3.6``, ``<=3.9``            |
 | ``1.7.0``                | ``0.7.0``                | ``>=3.6``, ``<=3.8``            |
 | ``1.6.0``                | ``0.6.0``                | ``>=3.6``, ``<=3.8``            |