Update CHANGES.md

Author: merbla

CHANGES.md

@@ -1,31 +1,31 @@
 ## 2.4.0
-- #62 Default fields added by serilog to splunk
-- #63 Possible thread leak when ILogger instances are disposed
+- [#62](https://github.com/serilog/serilog-sinks-splunk/issues/62) Default fields added by serilog to splunk
+- [#63](https://github.com/serilog/serilog-sinks-splunk/issues/63) Possible thread leak when ILogger instances are disposed
 
 ## 2.3.0
-- 59 Added ability to use custom fields with HEC.  See http://dev.splunk.com/view/event-collector/SP-CAAAFB6.
+- [#59](https://github.com/serilog/serilog-sinks-splunk/issues/59) Added ability to use custom fields with HEC.  See http://dev.splunk.com/view/event-collector/SP-CAAAFB6.
 
 ## 2.2.1
-- #47 Tooling updates to VS2017
-- #48
-- #49
-- #52
+- [#47](https://github.com/serilog/serilog-sinks-splunk/issues/47) Tooling updates to VS2017
+- [#48](https://github.com/serilog/serilog-sinks-splunk/issues/48)
+- [#49](https://github.com/serilog/serilog-sinks-splunk/issues/49)
+- [#52](https://github.com/serilog/serilog-sinks-splunk/issues/52)
 
 ## 2.1.3
-- #45 - Deadlock fix on UI thread.
+- [#45](https://github.com/serilog/serilog-sinks-splunk/issues/45) - Deadlock fix on UI thread.
 
 ## 2.1.2
-- #43 - Extend sink & static configuration to allow for custom JSON formatter.
+- [#43](https://github.com/serilog/serilog-sinks-splunk/issues/43) - Extend sink & static configuration to allow for custom JSON formatter.
 
 ## 2.1.1
-- #38(https://github.com/serilog/serilog-sinks-splunk/issues/38) - Fix for HttpEventlogCollector and sourceType
+- [#38](https://github.com/serilog/serilog-sinks-splunk/issues/38) - Fix for HttpEventlogCollector and sourceType
 - Clean up of sample app using examples of host, sourcetype, source override
 
 ## 2.1.0
 
 * Change to use a standalone formatter
-* Resolves #32 & #26 by exposing `HttpMessageHandler`
-* Resolves #30 by ignoring OSX build and including tests in `build.sh` for TravisCI
+* Resolves - [#32](https://github.com/serilog/serilog-sinks-splunk/issues/32) & - [#26](https://github.com/serilog/serilog-sinks-splunk/issues/26) by exposing `HttpMessageHandler`
+* Resolves - [#30](https://github.com/serilog/serilog-sinks-splunk/issues/30) by ignoring OSX build and including tests in `build.sh` for TravisCI
 
 ## 2.0
  - Support for DotNet Core