Update RELEASE_NOTES.md

DanielGoldfarb · DanielGoldfarb · commit 9b1516f71bf8 · 2020-08-07T11:52:55.000-04:00
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
@@ -1,4 +1,7 @@
-### <a name="v0.12.7a0"></a>v0.12.7a0 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; released 2020-08-07
+####
+---
+
+### <a name="v0.12.7a0"></a>v0.12.7a0 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; released 2020-08-09
 #### Enhancements
 
 - [**External Axes Mode**](https://github.com/matplotlib/mplfinance/blob/master/markdown/subplots.md#the-matplotlib-method)
