Update CHANGELOG.md

Co-Authored-By: João Duarte <jsvd@users.noreply.github.com>

Author: karenzone

CHANGELOG.md

@@ -1,6 +1,6 @@
 ## 3.0.8
   - Docs: Correct typos [#19](https://github.com/logstash-plugins/logstash-output-csv/pull/19) 
-  - Docs: Fix formatting after code sample (#22)(https://github.com/logstash-plugins/logstash-output-csv/pull/22)
+  - Docs: Fix formatting after code sample [#22](https://github.com/logstash-plugins/logstash-output-csv/pull/22)
 
 ## 3.0.7
   - Docs: Set the default_codec doc attribute.