ChangeLog in tdiary-blogkit-5.1.5 vs ChangeLog in tdiary-blogkit-5.1.6

@@ -1,4 +1,8 @@
[phone] Tada, Tadashi <[e-mail]>
+	* use GitHub Actions for CI instead of TravisCI
+	* release 5.1.6
+
 2021-02-28 Tada, Tadashi <[e-mail]>
 	* release 5.1.5
 
 2020-11-29 TADA Tadashi <[e-mail]>
 	* release 5.1.4