Prep for 3.8.8 (#825)

Author: rmpowell77

README.md

@@ -53,6 +53,23 @@ desired behavior.
 Please check out the [Getting Started](GETTING_STARTED.md) guide.
 
 # Release notes
+## Release notes for 3.8.8
+
+### New Features
+
+Bugs addressed in this release:
+
+* [#818](../../issues/818) Edit beat maps is show tempo instead of beats
+
+Other changes:
+
+* [#21](../../issues/21) Add some way to play music, midi with animation
+* [#810](../../issues/810) We should have a way to set fermata for beats
+* [#812](../../issues/812) Make it easier to read xbm files.
+* [#814](../../issues/814) Add the ability to dump when the beats occur with calchart_tool
+* [#815](../../issues/815) We can probably improve the way animation panel timer works by using one-shot
+
+
 ## Release notes for 3.8.7
 
 ### New Features