Changes.md with formatting

Author: merbla

CHANGES.md

@@ -1,7 +1,9 @@
-**1.5.0**
+##1.5.0
  - Moved the sink from its [original location](https://github.com/serilog/serilog)
-**1.5.30**
+
+##1.5.30
  - Added switch for template rendering
-**1.6**
+
+##1.6
  - Added support for Splunk 6.3 Event Collector
  - Deprecated Splunk HTTP Sink using Management Port/API