Prepare release notes for v2.27.0

Git for Windows Build Agent · Git for Windows Build Agent · commit 63016a3f19df · 2020-06-01T18:34:27.000Z
Signed-off-by: Git for Windows Build Agent &lt;ci@git-for-windows.build&gt;
diff --git a/ReleaseNotes.md b/ReleaseNotes.md
@@ -1,5 +1,5 @@
-# Git for Windows v2.26.2 Release Notes
-Latest update: April 20th 2020
+# Git for Windows v2.27.0 Release Notes
+Latest update: June 1st 2020
 
 ## Introduction
 
